RAM preview green bar vanished

Hi, does anyone know why the green bar that displays cached frames for RAM preview wouldn't display?
Yesterday it was working. Today it isn't.
I've naturally tried restarting my pc but it's still doing it. I've not altered any settings either in After Effects or on my pc. I literally came in to work this morning and it's gone.
Anyone any ideas? Is there somewhere where I turn it on?
I'm using AE 7.0.1
Windows XP sp3
Intel Xeon 5110 @ 1.6ghz
2gb Ram
Thanks

I don't see the green bar filling up at all.
I've opened up some old AE files to see if it's just the new files it's affecting, but it's affecting all my AE files.
I click the RAM preview button, I see the frames numbers being rendered in the Info panel, and I see the animation rendered in the composition panel.
But no green bar on the timeline filling up to tell me it's progress.
Also scrubbing the timeline would make the green appear, but now it doesn't. It's just totally vanished and not working.
My settings are exactly the same as the identical machine next to me yet that is working just fine.

Similar Messages

Ram preview green line goes away when changing zoom level

I did a ram preview of my project, about 12 seconds long. Everything looks good until I want to zoom in or out on the comp, then the green line disappears and I have to render it over again. I don't remember AE doing this before. If I zoom to say 25% and render part of the comp, then zoom to 50%, that part with the green line is gone. I can render a different segment of the comp while in 50% and switch back to 25%, and the green line from when I rendered at 25% is back. I've turned off adaptive resolution in the fast preview options, and I turned off the disk cache. Is this a bug or just the way AE works now? I'm using CS6 version 11.0.2 on Win7.

Actually, I think I am. I didn't notice it before, but when I zoom in, if I have the resolution set to Auto, it changes between quarter, half and full depending on the zoom level. I've never noticed that before, or maybe they only recently made it so it didn't say Auto all the time, but now says what effective resolution it's set to. So is that the answer to my problem? Leave it on full resolution (or whatever I need at the time)?

Plenty of RAM, but RAM preview clears itself?...

Hello:
I've got a 20 second motion project that I'm selecting a 5 second portion of (using the timeline in and out markers). I clear ram preview (just to be safe), then do a RAM preview.
I watch my memory fill up partially in activity monitory. It only uses about 1.5 G out of a total of 4G RAM.
Then, I play the project... it chokes. I've got a replicator and a mask or 2, with some graphics. The project is HD, but I've got an X1900 card.
I also notice that as I scrub through the short burst I'm trying to preview the RAM preview (Green on the timeline) indicator disappears, reappears, get's chopped up, comes back.
Is this normal behavior? Seems like I should be cooking with oil at this point....
Thanks for any input!

Fun fact:
(Motion notes below) Final Cut Pro can only use a maximum of about 2.5GB of the 4GB maximum RAM it can allocate from the system.
Final Cut Pro is a 32 bit application, which means it can address up to 4GB of RAM. Of that 4GB, Final Cut Pro uses about 1.5GB for libraries, drivers, and so on.
http://docs.info.apple.com/article.html?artnum=93844
Doesn't matter how much RAM you've got, that's the limit.
Motion is going to encounter similar issues, but I don't have the numbers. You won't be able to use a large chunk of the 4GB it can allocate. (Also, if you've only got 4GB RAM total, a chunk of that will be allocated to the actual operating system)
Message was edited by: mattlewis

Random Flashing Color Bars within Quicktime Files during RAM Preview Only

I have been getting random color bar flashes within quicktime files in AE CC during RAM previews using Multi Processor rendering. Files other than .mov seem to not have this issue (although I have seen it twice...though it may be due to quicktimes in the comp). The rendered output using MP rendering is completely fine. If I turn off MP rendering the ram preview is fine. The source material is coming off a RAID 5 at 600-800MBs, I have moved the footage to a local SSD and a standard spindle drive with the same results. I have tried everything.....disabling GPUS in preview, disabling Fast Adaptive Preview, Disabling Disk Cache, Adjusting MP settings and RAM usage per core, disabling hardware accelleration of interface, adjusting gpu memory useage, every codec under the quicktime wrapper including uncompressed codecs, updating Blackmagic drivers, updating quicktime, limiting how many processors Windows 7 64bit can see, resetting AE preferences. I even installed After Effects clean on my second boot drive for gaming with no plugins or other apps, same issues. Have discussed this heavily with tech support at Adobe and they are working on it for a few days before getting back to me. When I got off the phone the tech was of the mind that I have too many cores for the Quicktime codec to handle.
My system :
Windows 7 64bit
Dual Xeon E5-2687W: 16 Physical cores and 32 cores with Hyperthreading
32GB 1866 DDR3
3xNvidia GTX 680 4GB cards
SSD boot and seperate SSD media cache drives
8TB internal SAS RAID 5 using a ATTO card
Blackmagic Deckline Extreme 3D+ card
Any help or thoughts would be greatly appreciated as this is a huge boon to my workflow. Having purchased a $12K system for grading and rendering....not being able to use the ram preview in AE with multiple cores is a huge inconvenience.

Here is the requested taskmanager screenshot. As my test comp only has a single duplicated quicktime in it, it renders too fast to really catch the AE instances doing anything. So this is from a heavier comp. Settings are as pictured above with 3GB per core using 8 total cores of the 32. It did flash the bars.
Here is what I tried tonight:
- Followed the link on Quicktime having trouble with too many processors. Using MSCONFIG I dropped the recognized Processors to 21, 16, and 8 and tested all three settings. Each had the flashing bars issue. Again as usual, at random, sometimes 3 previews before showing up, sometimes the first preview run. I have noticed that the ram previews that take a little longer seem to be clean. Then sometimes it seems to fly through the preview, grabbing large chunks on the green progres bar above the timeline, or many little chunks very quickly....these are usually the preview runs that will show the flashing bars. I make a point of purging the cach between each one so it doesn't remember, plus I have disk media cache off, but sometimes I get the feeling it's remembering bits.
- I removed all the Quicktime Components from the QTComponents folder and tested it. Flashed the very first run without any quicktime components.
- Followed the Firewall or TCP instructions and made sure everything was allowed through ZoneAlarm. However I could not find the QT32 Server listed anywhere or figure out how to add it. No matter because I closed and force quit all of the firewall processes as well to make sure. Still flashed.
- I followed all the advice on the landing page for Quicktime-related problems
- I also tested out ram previews again thourougly with the same clip but converted to a Tiff sequence. No matter what I tried there was never any flashing in the ram preview with tiffs.
- I also re-tested the clean render output. Made a ram preview with the flashing bars, then without purging rendered it out to a quicktime file and there were no bars at all in the rendered output. I even tried duplicating this render output 6 times in the render queue and rendered them all at once. Not a single one had a flashing bar frame. I even played all 6 1080P uncompressed 4.2.2 YUV 10bit pieces off the RAID with no dropped frames or hichups.
- Killed every process in the taskmanager but for essential windows processes and the flashing bars were still present
- Set the priority to Real-time for every AE process including Adobe QT32 Server, Dynamiclinkmanager, and all the AE processes. Still flashed.
I am now considering disabling two of my GPUs in the device manager. However I'm a bit worried about disabling the wrong one and being locked out. Any thoughts? Is the computer to powerful for some process somewhere? Why only in RAM preview? Thanks again.

Only get 1 frame or green background in RAM-Preview AE CS5.5

Hi All,
I've been working with AE for a few years now, and nothing like this has ever happened to me before:
I have a batch of quicktime videos (.mov)(stats are 1080 @24p) that play just fine outside of AE or Premiere. But when I stick them in and do a RAM-Preview, I get only the audio and 1 frame. If I scroll through the video I may get another frame or 2 if i'm lucky, or a dark green background. I have no idea what could possibly be doing this. And it happens in Premeire Pro CS 5.5 as well.
Stats for my mac are 4 gb of RAM and running OSX Mavricks

Codec is AAC, H.264, 2 Channel Audio, etc.
Opening up a file with VLC gives me 516 streams ( ! ) with
Stream 0 having Audio | MPEG AAC Audio (mp4a) | Stereo | 48000 Hz
Stream(s) 1 - 516 having Video | H264 - MPEG-4 AVC (part 10)(avc1) | 1920x1080 | Frame rate of 23.9744...
Some, however, have the (correct) decoding of Planer 4:2:0 YUV, as of which I believe this causes the Purp/Green colors & sometimes dropped frame.
Edit: (More Info)
Due note that the movies where recorded as AVCHD, then opened into Quicktime and then saved as a .MOV for greater flexibility with different programs.
Would it be worth it to try and find the .MTS files again, and use those?
Or, if they have gone missing, what would I do anyways?
Thanks.

After Effects CC on a Macbook. In RAM Preview the green progress line is not displaying. Preview works but no line to indicate progress. Is there a way to tunr the line back on?

We have two Macbook Pros running CC After Effects. Bothdo not show the green line while running RAM Preview. The Preview works but there's no way to watch its progress. Any thoughts?

It is an option in the timeline window. Upper Right Corner...
Sometimes it causes problems. Maybe that is why it is turned off.

After effects cc RAM preview problem

I recently bought a new rig
i7 4790K running at stock
8gb 1866mhz corsair vengeance pro ram 2x4gb
EVGA GTX 770 2gb superclocked
WD Black 1TB 7200rpm
Samsung 840 Pro 128gb
Asus Z97-PRO motherboard
I run AE and open a file and import my clip (59.94fps) and add twixtor and then hit ram preview to see if all is good and it either takes a little bit longer than it should
or it would say "Rendering frame switching to foreground" When this happens all seems ok but after the preview I can not scroll through the timeline without lag and pixelation again like as if I havnt hit the ram preview. So it would have the green bar above the clips showing for the ram preview but once the preview is over I can scroll through the timeline for a second then the green bar goes away. I know that the pixelation is due to adaptive resolution
but I have tried changing that to "fast draft" and the pixelation stops but still struggle to view in timeline. I have the preview resolution set to third or quarter.
I thought that getting higher clocked ram would solve the problem atleast a little more. But not to much. So my main question is what am I doing wrong? Or how can I correctly setup AE or my computer to handle this?
The main clip is actually 200fps but I go to File>Interperate footage>Main>Conform to framerate
Changing it from 200fps to 59.94.
My main frustration is I see videos of the kinds of clips I'm editing posted by kids that edited them and I think theres no way they have a pc as expensive as mine that would allow them to edit these clips. So Its gotta be something I'm doing wrong.
Thank you to anyone that helps so much!

Well, for starters, turn off MP rendering. That warning during RAM previews is a clear indication that you are using it and well, with just 8GB RAM it doesn't exactly make sense. The rest is too vague since you haven't provided any proper details about your source file, but suffice it to say that temporal mangling of any kind can have weird effects, even more so if your source files are compressed. Therefore the pertinent thing to do first would be to convert your file to an uncompressed intermediate format, including conforming it to your target framerate. In addition you may simply consider not using any fast previews or the disk cache at all. It is known to be flaky with temporal plug-ins. set your comp to Final quality to enforce software mode rendering.
Mylenium

RAM preview doesn't save when using multiprocessing

I'm running After Effects CC on a MacPro 2013. When I normally render a RAM preview, and I finish playing it, the green bar stays.
When I switch to the multiprocessing feature for RAM previews, after I finish playing it, the green bar disappears.
I have a large SSD global cache drive being used, so storage of the preview isn't the problem. There's plenty of RAM in the system (64GB). I've tried a number of different multiprocessing settings, and even if I only use 2 processors for RAM previews, they won't save after I play them.
Is this just the way RAM previews work with multiprocessing, or can I change some settings to fix it.
Thanks!
Jerry MacKay
Littleflick Pictures

Here's a shot of my current settings. I tried a number of other settings, with different numbers of processors and allocated RAM. But every time I enable multiprocessors for RAM previews, I get the same result (the RAM preview works, until I stop playing it...then the rendered frames are deleted).

After Effects Ram Preview Drops Frames , Using Strangely Too Much Ram

System Specs :
     CPU : Core i7 4770k
     Memory : 16 GB DDRIII
     Graphic Card : GTX 770 4GB RAM
     Storage : 256 GB SSD + 2 TB HDD
     OS : Windows 7 SP1
     Using After Effects CC 12.2.1.5
NOTE : NOT ANY ADDITIONAL HARDWARE IS ATTACHED TO MY PC . NO SOUND RELATED EQUIPMENT NOR CAPTURE CARD NOR ANY THING ELSE
Hi there
As you Already Don't know I'm an After effects Specialist Using it for quite long time . There is an Ancient Problem with CS6 CC versions . I have a short Small size 1080p Video , about 8 MB , I drag it into project panel and then put it into timeline hence it creates a sequence . There are no Effects and nothing added to timeline , just a small simple video . The Strange Problem is when I click "0" for ram preview , The video starts playing and the green bar above timeline starts to fill . When Ram preview Finishes and plays the video from beginning I See there are several frames Between which are not being loaded to Ram ! The video plays RGB color bar instead of main video and when I check the Green bar above Timeline I see that those frames are being dropped and there is no Green bar above them !
I have had this problem several times before but this time it is too important and the problem should be solved . What is obvious is that some frames are not being rendered or are being deleted after render !
Another Strange problem is that when I open Task manager , It shows AE uses around 10 GB ! of RAM when I press "0" for Ram previewing this video !
So there is a Logical explanation here , Somehow when I do ram preview this video it uses extra ordinary too much ram so AE is unable to load the full video (8 MB) into Ram and hence deletes some of frames .
most of my videos have not this problem and use acceptable amount of ram .I've had this issue with some of my videos till now .
Listen carefully : "This has nothing to do with AE preferences or low memory or plugins . because there is nothing wrong with any individual components of may hardware or software . I have far more than enough RAM for a 8MB video . My Memory has no hardware or software problem . I tested them and if there was any problem with memory or other hardware that should have affected other applications . I have the most recent AE version . I have the most Recent windows updates and drivers . I have a Clean virus free system , and as a computer engineer this strange AE problem is rarely caused by viruses , trust me . I have not any hardware instead of ones a normal PC has . I have not any problem with my whole entire system configuration because I have benchmarked my PC with several up to date softwares . I have tested my PC with almost any STRESS TESTING solutions available for really long period of time , 3 days by IDA64 . Not any driver conflict , dll missing , registry problem have been discovered , as I know perfectly how to solve them ."
I asked some of my friend whom are expert in AE . I handed them my videos and Watched ALL OF THEM HAD THE SAME ISSUE ! So the problem isn't related to my Local PC . What i believe is that there is some malfunctioning or miss coded part in AE source code that decides to reserve such a huge strange amount of ram for such a tiny 8MB video . The point is that the AE works fine , no crash or any problem report . So the AE it Self decides to allocate such huge amount of ram and thinks it is correct ! So I think this is a work around that AE developers in adobe are using to bypass a problem or conflict ! by Using more amount of RAM . I think that there might be some miss understanding between the AE and my installed codec . I installed MEGA CODEC PACK on my PC to enable some new codec supports , and so are some of Windows default de/encoders changed to new ones . I think there shouldn't be any problem But there is something wrong between AE and de/encoder modules !
Please any one with any suggestion , I really appreciate your advices .

###UPDATED###
Well thank you guys for your patience ...
as you considered I forgot to mention the codec itself and other stuff ...
The video is in 1080p , 35 sec long , it is a green screen shot , this video is directly downloaded from YouTube and plays perfectly on all tested PCs . here are detailed info :
Format                                   : MPEG-4
Format profile                          : Base Media
File size                                 : 8.55 MiB
Duration                                 : 34s 993ms
Overall bit rate mode                : Variable
Overall bit rate                         : 2 050 Kbps
VideoFormat                            : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : [email protected]
Codec ID                                 : avc1
Codec ID/Info                            : Advanced Video Coding
Bit rate                                    : 1 927 Kbps
Width                                      : 1 920 pixels
Height                                     : 1 080 pixels
Frame rate mode                      : Constant
Frame rate                               : 30.000 fps
Color space                              : YUV
Chroma subsampling                 : 4:2:0
Bit depth                                  : 8 bits
Scan type                                 : Progressive
NOTICE : This video is just for testing the lighting and etc , and so the Sampling and other specs are not considered for broadcast .
I think you hit the point ! Thats K-lite codec pack installed on every machine which the video is tested on ! The point is whats wrong with it ?! I have had never ever any problem with this codec pack !!!
The deadly question : So what are the alternative ways to work with codecs that AE doesn't support ?! because installing codec looks simple and sufficient !

RAM previewing and rendering not working correctly

Hi,
Today I was just about finished editing a video on CS6 and then when I'm about to add the last effect and render it it stuffs up on me:(. What happens is that while RAM previewing at some point during the loading of the preview it will stop loading, It will then proceed to play the ram preview on loop and when I press a button to stop it a small box pops up in the centre of my screen and the ram preview bar to show what has loaded (the one which shows green for parts that are loaded and blue for cached) turns black and sometimes other parts of after effects turn black. This has happened before and I fixed it by uninstalling and reinstalling After Effects about 6 times. I would do that this time though I would like to know the cause of it and any possible fixes as it is quite irritating. Another thing that may be happening is the RAM usage is slowly filling as I render. This has happened before on my laptop and I did not manage to fix it though it was not related to the first issue that time. The last time when it happened on my laptop the RAM usage eventually filled up to 100% and it would no longer render. I am not sure if it is happening this time as it is still currently rendering though I will update the thread if it does. Finally my render is going very slowly, I am not sure if this issue is realted to any of the above or if it is just the effects I am using though. My memory and multiprocessing settings are using 6 cores of 7 with 2 GB of ram allocated to each with multiprocessing on. My ram allocated for other programs is 6GB. To fix these Issues so far I have tried clearing the cache, purging the memory and image cache, restarting my computer and reinstalling after effects. My specs are:
i7 4770k non overclocked
GTX 780
G.Skill Ripjaws Z 2133mhz 32GB
Samsung 840 pro
Seagate Barracuda
MSI Z87-G45
H100i cooler
Any reply is appreciated
Thanks in advance
Sam

How much experience do you have with AE? Ram preview can be lengthened by adjusting the resolution of the composition window, different parts of the project can be previewed using the work area, and preview length and render time are both a function of composition frame size. Complex, memory intensive effects like particle systems will reduce the render time and the length of a ram preview. Without knowing the details of your composition it's hard to say if you are running into a bug, running out of resources, or experiencing normal behavior.

Vertex Array Object deleted after full screen RAM preview

Hi,
I'm writing a plugin where I use OpenGL VAOs. Everything works fine, also RAM preview, but when I cancel full screen RAM preview and render a new frame the VAO is somehow deleted. I called glGenVertexArrays for testing and the handle it returns is 1, which was previously the handle of my valid VAO.
Has anyone had this problem? It only happens when using full screen RAM preview. I also tested this in the GLator sample by generating dummy VAOs and it's exactly the same.

Hi Rick,
Thanks for the reply.
I've changed the .mp3 file to a .wav file and that seemed to fix everything, for the time being...
It previewed for 10 seconds fine, but after about 15mins of working on this the RAM preview area has started to shrink again and it's only previewing just over half (5 seconds).
I changed my memory and allocated 4GB to other apps, also turning off rendering multiple frames... (by the way for some reason I can't get my 'actual cpu's that will be used' to change from 0? This seemed odd). Still no change.
I've attached a screenshot of my comp details below, along with a shot of my screen when RAM previewing... (you can see the green bar does not go all the way). I'm not working with ANY footage which is why this is most peculiar, just the wav file so I can edit to the beat.
Once again if there is anything else you can think of...

CS5 RAM preview is slow if I do other things while it's building

Good morning!
I'm experiencing a strange issue. 1080/29.97 comp on an 8-core w/ 16GB. Multi-proc rendering is off.
If I RAM preview the comp (800 frames or so) and wait while AE builds the RAM preview, it plays back fine & at speed.
If I start the RAM preview, then go work in Photoshop while it's building, then return to AE and attempt to play it down, I have the green bar like a normal RAM preview, but it plays very slowly -- almost as if it's re-rendering every frame (actually slower than if I just hit spacebar to render&play on the fly).. maybe 1fps. If I stop and play those frames that it's slogged through, they then play normally.
Is it possible that RAM previewing while I'm using another app (e.g., Photoshop) is resulting in the frames being written to swap disk or elsewhere so that they're being re-read into RAM when I actually try to play it? Disk caching is disabled in the AE Prefs, but...?
Thanks in advance for any ideas -- very annoying.

> Is it possible that RAM previewing while I'm using another app (e.g.,
Photoshop) is resulting in the frames being written to swap disk or
elsewhere so that they're being re-read into RAM when I actually try to
play it?
Yes. That is possible.
Be sure that you're reserving enough RAM for other applications.

AE CS5 (10.0.1.19) Ram Preview - Audio stops and continue playing randomly

I already reported this issue to Adobe as a BUG but I want to ask here if somebody else have this problem or can confirm it.
Audio breaks/stops and continue playing randomly when 'Ram Previewing'
It happens mostly when the RAM is fully filled up with image cache files! When the Ram is not filled up totally with image cache files it happens rarely!
Steps to reproduce BUG / issue:
1. create a new composition with a length of for example 5 minutes.
2. create a new solid with size of 50x50 pixel and animate the position of the solid for a very long time so when ram previewing the whole ram/memory gets filled up with different image cache data (this is very important!). Alternatively you could use a long video file to fill up the RAM completely.
3. import a wave file .wav 16bit 48khz uncompressed which is very long for example 5 minutes.
4. insert the wave file in the earlier created composition which contain the animated solid or video file.
5. Set the work area bar (preview range) for the whole composition.
'Ram Preview' the composition until the whole RAM/memory is filled up with image data.
AE has to stop rendering because there is no more space available in RAM.
make sure 'from current time' checkbox is off.
6. listen to the audio which stops playing randomly for about 1-2 seconds and comes back and continues playing (***BUG***)
7. Now set the right handle of the composition work area bar (preview range) to less then the maximum RAM size
(less then the green cache indicator on the right side)
8. "Purge image caches" or "Purge All"
9. Ram preview the now smaller work area
10. listen to the audio. The audio breaks are gone! (***Workaround***)
Additional information:
I have the latest After Effects CS5 update installed (10.0.1.19)
This behavior is tested with different audio drivers inside After Effects CS5 (After Effects WDM Sound, Generic Low Latency ASIO Driver, ASIO DirectX Full Duplex Driver)
I also tried different Sample Sizes Buffers (alternatively to the default 2048 samples) but without success.
Reducing the amount of RAM which After Effects can access didn't solve the problem!
System:
Win7 64bit all latest Updates, 8GB RAM, CPU: intel Core 2 Extreme QX9300, nVidia Quadro FX 2700M, IDT High Definition Audio Driver v6.10.0.6227
There is no driver problem on my system because After Effects CS3 & CS4, Premiere & Soundbooth CS3 CS4 CS5 have no audio problems!
I have lots of other professional audio software like Steinberg Cubase 5.... on the same system and they all work fine.
I also turned off AVG Anitivirus and Windows firewall for testing without success.
AdobeQT32Server.exe, dynamiclinkmanager.exe, PProHeadless.exe, afterfx.exe do not get blocked by firewall they have full permission.
The CS5 Production Premium installation went fine and without errors and antivirus protection was turned off for the installation.
Any help would be nice!
Felix

Yep, I agree with craulmedia....
It's 1 month ago after my initial post and no valuable feedback from Adobe although I filled out the bug report in addition to this post and provide my email for further information.
The only reason for upgrading from CS4 -> CS5 production suite was the use of all my 8GB RAM in AE and now AE can use it but when it's using it the audio have issues.
CS5 is on the market for nearly a year and still have such essential issues... And my fear rises there will be no valuable update fixing these issues but instead Adobe forces me to upgrade later this year to CS6 in hope something change...
I have had support request for different Adobe products in the past including telephone support, web support via Adobe ID... none with success the web support answered my request 3 weeks later with the message they will look into it... time went by and in the end the result was "Yes we know it's a known bug" the bug did not get fixed for that CS version. it even exists in the next major CS release! (talking about EncoreDVD here). Once the web support answered weeks later when I was in holidays and after some days I was not able to respond they closed my case. I reopened the case but never got an answer! Telephone support is nearly waste of time because in 95% of all cases it does not help to reinstall the whole operating system and talking to people who know less about computers in general or Adobe products then my mom - it's a waste of time.
I don't want to blame here anybody for things happend in the past I just want to point out that this time I choose an other support channel (bug report and forum post) but it seems that this support channel is also a waste of time after 1 month with no valueable feedback!
I bumped up this post 2 times and thanks to craulmedia for the third time.
And now here is my fourth time *BUMP*
All I got so far is: "I saw your bug report it's in the queue"
Is it still in the queue? which queue nr. does it have? how long will it take to get any answer? is it reproducible? Is it confirmed as a known bug by Adobe? Is Adobe working on a fix? When will this fix be available? Is the fix provided in form of an update or in the next major release?
OK, I know this is a user to user forum and Adobe people only stop by in their free time and there is no guarantee for any real support.
But it started out so good in the first time...
Last 2 things I want to add here:
1. Why should I provide my email in the bug report? Sure so Adobe can get back to me for further information... but wouldn't it be nice if Adobe would be so kind to give some status report to that given email as a small present for the enthusiastic beta testers ?
2. please Adobe take a look at www.uservoice.com already Autodesk started to move there with 3ds Max.

RAM Preview issue

Hi,
I'm wondering if anyone has seen this or can provide some direction for further investigation. This is on a new Mac Pro on which I have just installed FCS
In some projects the RAM preview has no effect on playback performance. After generating a RAM preview, the project will play at the same speed (say 2 fps) and as soon as I pause playing, the green progress bar that indicates project is loaded in RAM disappears or becomes fragmented - without modifying the project in any way. When this happens it also becomes nearly impossible to do additional editing as every simple task (as simple as resetting the play range) can result in the spinning beachball. There was a recent thread on RAM preview issues (http://discussions.apple.com/thread.jspa?messageID=12215113&#12215113) but it appears the problem there was due to a long HDV project. The projects I experience this on generally have a lot of particles or replicated elements, but are standard 720 x 486 resolution projects lasting less than 10 sec. System memory usage is relatively small, less than 4 GB.
These issues arise on a recently purchased MacPro (3.33 GHz 6-Core, 16 GB RAM, ATI 5870). The boot disc is an OWC SSD, and user folders, scratch, etc are on separate hard drives. I installed the operating system on the SSD using the installation disc, and have manually installed all my programs from their original discs. (I initially used migration assistant to bring over applications, but that failed with some applications, so I wiped clean and started over). There have also been some past threads on how different hardware configurations can affect performance, but I don't seem to be doing anything abnormal here.
What I have done:
Tested ram using memtestosx
Verified memory usage through activity monitor. The projects I have tested on use up less than 4 GB of system memory
Before each test or comparison I reset preferences.
I do not have this flakey behavior with an older MBP (17" 2.93 GHz Core 2 MBP with NVIDIA 9600) running the same OS (10.6.4) and motion version (4.0.3). Running the same project on the MBP will take longer for the RAM preview to complete, but when it does, the project plays at full frame rate.
The upgrade to a MacPro was mainly for other CPU and RAM intensive applications unrelated to video or graphics, but I expected motion to show a nice performance boost over the MBP on this new machine. Anyhow, any insight or direction for further investigation that I should pursue will be appreciated.
Thanks.

I tried your project (nice, BTW), and yes, 20,000+ particles take some time to render. However, when I did a RAM Preview, I had no problems - after render it played at full speed.
UNTIL...
I selected the emitter. Then playback went to the pre-RAM-Preview speeds. As soon as I turned off overlays or made sure the emitter was not selected, the playback instantly sped back up to full speed. I believe this is because Motion needs to image the constantly changing outline of the emitter. This means it needs to be re-drawn every frame after Motion determines the extent/size of the 20,000 particles on their random journey.
I think this is backed up by the fact that near the end of your project, there are only a few particles to keep track of and the playback appropriately speeds up. Also, CPU usage vastly increases when I turn on the overlays.
Moral of the story? To ensure the quickest possible playback, turn off overlays (⌘/) or ensure that something like a particle emitter is not selected during playback.
Patrick

Ram Preview - Stopping after 40 frames

Hi All,
I've recently moved to After effects CC on my home computer, and for some reason whenever I try and RAM preview it stops after 40 frames or so...
The animation is REALLY basic (full screen shape layers turning on and off to the music) and an mp3 file playing in the background.
My computer spec is:
21.5-inch iMac Mid 2011
OSX 10.8.5
2.8 Ghz Intel Core i7
16 GB 1333 MHz DDR3
AMD Radeon HD 6770M 512 MB
I have the following multiprocessing prefs:
I would greatly appreciate any help on the matter... the project seems far too basic for it to be having genuine issues with playback...
Dan

Hi Rick,
Thanks for the reply.
I've changed the .mp3 file to a .wav file and that seemed to fix everything, for the time being...
It previewed for 10 seconds fine, but after about 15mins of working on this the RAM preview area has started to shrink again and it's only previewing just over half (5 seconds).
I changed my memory and allocated 4GB to other apps, also turning off rendering multiple frames... (by the way for some reason I can't get my 'actual cpu's that will be used' to change from 0? This seemed odd). Still no change.
I've attached a screenshot of my comp details below, along with a shot of my screen when RAM previewing... (you can see the green bar does not go all the way). I'm not working with ANY footage which is why this is most peculiar, just the wav file so I can edit to the beat.
Once again if there is anything else you can think of...

RAM preview green bar vanished

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