Why do images reload in develop module?

I get the "Loading..." message for about 5 seconds the first time I open a raw file in the develop module. I understand the reason for this. If I go to the next image and then come back to the first, loading is usually almost instantaneous. However, sometimes even after a very short time, the first raw file takes the full 5 seconds to load when I access it again. I thought that it should just reload from the Adobe Camera Raw cache. My ACR cache is set to 5GB and is only 20% full. I am using a Mac.
Jeff

Lightroom 2.x creates two types of preview - the first is the default version (let's call it the catalog preview) primarily intended for use by the Library module and the second is the Camera Raw Cache preview . The Camera Raw Cache preview is used in the Develop module to provide a high quality preview whilst Lr renders out the raw image into ram for editing. This cached preview (CR preview) can be shared between Lightroom and the Camera Raw plug-in. The cached CR previews are larger and of higher quality than the default catalog previews.
It's possible to define the size of the CR cache from within the Lightroom Preferences panel. Setting the cache size to high values will pay dividends if you tend to work with a lot of images within the Develop module because the cached CR previews have sharpening and noise reduction applied. So, fully up to date cached CR previews are immediately available next time you click on that image. To get the catalog previews to update adjustments such as sharpening and noise you need to revisit the Library module, which takes time and cpu cycles.
Getting back to the cached previews. As you move back and forth between images in the Develop module the cached CR previews will be used while rendering out the original goes on in the background. That being said, at some point you may reach a point were you have viewed more images than the cache can hold, so one by one they get deleted. Clicking on an image were the cached CR preview has been deleted forces Lightroom to read from the catalog previews. Fortunately, a new CR preview will then be created and made With a small cache and many files you might find yourself using the catalog previews more often than would be the case with a large cache. The default CR cache is 2GB, but it can be as low as 1GB. However, with more recent high mega pixel cameras it is best to set it to 5GB or higher.
Tip: you can switch off the overlay message for loading and rendering from within the View Options panel (View menu in both Library and Develop modules).

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How do I view two "different" images in the Develop module so I can match exposure ?

Seems like a dumb question, but for the life of me cannot figure this out ?
Thx

I am not aware of any view mode in the Developer module that is similar to the Library module's Compare View mode. If the images you are trying to adjust were taken at the same time under similar lighting, you can select the settings of the image you adjusted and copy them to the other images. Select the image whose setting you want to copy and then click on the Copy button found in the bottom left side panel. This will display the Copy Settings panel. Insure the setting you want to copy are checked and any you don't want to copy are unchecked. Click the Copy button. Next, select one or more images you want to copy the setting to and click on the Paste button (bottom of left panel). The selected setting will be applied to the selected images. You can also perform a similar function when in the Library module but this time, look for the Synch Settings button found at the bottom of the right hand panel. Button names are changed but the dialog is essentially the same. Photos can be selected either in grid view or the film strip.

I have Lightroom 5. How do I rotate images in the development module?

The heading says it all...

Well actually, it doesn't say it all
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Why is the image on my screen changing when I switch between the library and develop modules?

I've noticed in the past couple of days that I will be refining an image in the develop module, feel I've gotten it the way I want it to look, and then switch back to the library module to export. When I do so, I notice the colors are quite different than they were just a second ago in the develop module. When I switch back to the develop module, it goes back to the way it looked in the develop module. How might I fix this?

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LR5 - Selected image does not display in the Develop Module

I recently upgraded to LR5 from LR4.1. I have seen on several occasions where the selected image in the Develop Module does not appear. I can move back to the LIbrary view and the image appears, but when I switch back to the Develop Module, the image disappears and only a black box appears (dark grey really). This seems to happen after I have deleted flagged files using the ALT-Backspace shortcut. This has happeded when I deleted while in the Library and Develop Module, but does not happen every time. I have disabled the "Show photo on Mouse Over" view option. Prior to that, the preview window shows the selected or moused over photo.
The only thing I can do to get the develop module to work again is to restart Lightroom. I've seen no other posts regarding this issue and it is very annoying when trying to go through 4000 photos! I can find no place to report bugs, so I am posting this here.

i found LR5 the most bug infested LR version ever.
i "use" it only as test setup.
real work i still do with LR 4.4.
dav_miller wrote:
How does this issue get reported to Adobe as a bug or is the fact that it is in the forum take care of that?
nope.. in this forum you will only hear that this is not such a big issue and will be fixed soon.
honestly im waiting for some bugs to be fixed since v3.6..... and i gave up on reporting new bugs to adobe.
i just hope that some day they will be fixed.
there is a text layer bug in photoshop i reported back in 2011 and that´s still in photoshop CC.....

Strange phenomenon when scrolling through develop module images in LR6

I just upgraded to LR6 and so far like what I see as far as performance increases.
Noticed a strange phenomenon today while scrolling through the images in the develop module. These are all rendered images with a preset applied to them.
I notice when I use the arrow key to go to the next image, the image first displays very "flat" or basic and then the rendered image appears a second or two later. If I scroll back the image displays normal rendered.
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Here are my system specs from the LR Performance tab:
Lightroom version: CC 2015 [1014445]
License: Creative Cloud
Operating system: Windows 8.1 Business Edition
Version: 6.3 [9600]
Application architecture: x64
System architecture: x64
Logical processor count: 16
Processor speed: 2.6 GHz
Built-in memory: 32691.8 MB
Real memory available to Lightroom: 32691.8 MB
Real memory used by Lightroom: 4451.9 MB (13.6%)
Virtual memory used by Lightroom: 4594.8 MB
Memory cache size: 6002.1 MB
Maximum thread count used by Camera Raw: 8
Camera Raw SIMD optimization: SSE2,AVX
System DPI setting: 144 DPI (high DPI mode)
Desktop composition enabled: Yes
Displays: 1) 3840x2160
Input types: Multitouch: No, Integrated touch: No, Integrated pen: No, External touch: No, External pen: No, Keyboard: No
Graphics Processor Info:
GeForce GTX 680/PCIe/SSE2
Check OpenGL support: Passed
Vendor: NVIDIA Corporation
Version: 3.3.0 NVIDIA 350.12
Renderer: GeForce GTX 680/PCIe/SSE2
LanguageVersion: 3.30 NVIDIA via Cg compiler
Application folder: C:\Program Files\Adobe\Adobe Lightroom
Library Path: E:\Lightroom Catalog\Lightroom CC\Lightroom CC.lrcat
Settings Folder: C:\Users\Toby\AppData\Roaming\Adobe\Lightroom
Installed Plugins:
1) Adobe Revel Plug-in
2) Behance
3) Canon Easy-PhotoPrint Pro
4) Canon Print Studio Pro
5) Canon Tether Plugin
6) Facebook
7) Flickr
8) HDR Efex Pro 2
9) Perfect B&&W 8
10) Perfect Effects 8
11) Perfect Enhance 8
12) Perfect Photo Suite 8
13) Perfect Portrait 8
14) Perfect Resize 8
15) Show Focus Points
16) Upload To Pictage
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Adapter #1: Vendor : 10de
Device : 1180
Subsystem : 96910de
Revision : a1
Video Memory : 1987
Adapter #2: Vendor : 1414
Device : 8c
Subsystem : 0
Revision : 0
Video Memory : 0
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Here is where you asked this before:
http://www.adobeforums.com/webx/.59b79139/0

Unreasonably Slow Develop Module LR 4.3/5.3

I was running LR 4.3 (updated version) on an iMac with OSX Mavericks w/ only 4GB of RAM but that hasn't been a problem in the past, 350GB of free space on the desktop hard drive, and 200 GB of space on the external drive where the images and catalog are located. Working on a wedding with RAW files, CR2 (Canon 5D Mk II) and NEFs (D700) (about 700 images total). Develop module takes 60+ seconds (up to several minutes) to load each image with the "loading" window, then an additional 60+ seconds for the image to load completely from a pixellated preview. This also happened on my Macbook Pro wth 16GB of RAM. Tried to auto-sync develop settings (Basic exposure settings, lens profile corrections) for ~45 photos and it took over 3 hours on the MBP. Haven't been running any other programs, ran a cleanup on the desktop to clear unnecessary files. Cleared the RAW cache, increased the size of the RAW cache, optimized the catalog, rendered the 1:1 previews (took many hours), and even created a new catalog with the images on the desktop. When all of this didn't work, I upgraded to LR5.3 and I'm still having slow (not quite as slow as before, but still infuriatingly slow) reaction times from Develop. I've wasted so many hours and I can't pinpoint where the problem is coming from.
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myhrmar wrote:
I just had a chat with the adobe support team and they say Lightroom is working perfectly, because the changes show up in Bridge and LR. And the people from ACDSee say that the lightroom edits are Adobe specific.
Correct. That's proprietary processing with the LR engine which has yet to be done (rendered and exported). The preview in those Adobe app's understand this and show you the edits but ACDC can't. You have to render an iteration as a TIFF or similar with the edits applied for another app to 'see' that. ACDC has not access to those preivews so it doesn't show you what will be applied upon export.

Develop module not displaying photos and tool updates.

This problem just cropped up on a previously working install - Windows 7, LR 5.6
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I have uninstalled LR and re-installed.
I have purged previews.
I have deleted "Lightroom 5 Preferences.agprefs".
What next?
David Hidding

Further info - Full Screen mode in the Develop Module - it's just black, no image. FS mode in the Library module works correctly.
I have tried loading the latest video drivers for my video card, rebooted multiple times, etc. Frustrated.
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David Hidding

Lightroom 2.2 Develop Module Lockup Problems

I have a Windows XP SP2 system with the following specs:
AMD 64 X2 4400+ processor
2GB of Ram
Nvidia 6600GT Graphics (128mB ram)
NView shut off
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Dave Mayfield

I have exactly same symptoms as Dave Mayfield.
Except I moved images to sub-folders and renamed them, from within Lightroom.
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Why can't I see the changes in my image when I move the sliders in LR's Develop Module

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Hello lakota85usa, the [http://kb.mozillazine.org/Profile_folder_-_Firefox#Mac profile folder is hidden Mac OS X 10.7 and above], not in your version(10.6.8), see if the "Showing hidden files and folders on Mac OS X" in the next link is helpful: http://kb.mozillazine.org/Show_hidden_files_and_folders#Mac_OS_X
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You probably have <Automatically write changes into xmp> checked in >Edit >Catalog Settings >Metadata tab.
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If you need xmp files - which are not necessary for Lr to work properly - you still can save manually to xmp by pressing Ctrl / Cmd + S after you finish editing a TIFF.
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How to convert imaq image to a 2D array without vision development module

Hi,
I'm looking for a way to convert an Imaq image into a regular picture (2D array) without using "Vision development module", nor saving it to a file (I need a refresh rate of about One frame per second).
any ideas?
thanks,
Gilad.

Greetings,
If instead of attempting to acquire the image as the raw data as per the last example, are you looking for something then like the IMAQ Image to Array? I made some research and initially I believed this VI was part of the Development Module, but I was thinking of the Array to Image VI, which is why I did not bring it up earlier.
Finally, how exactly will you then be manipulating that array? Or will you simply be interested in displaying it?
Cordially;
Simon P.
National Instruments
Applications Engineer

Why do images reload in develop module?

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