Time remapping / slow motion extremely jumpy with nested sequence!

I have just finished the rough-cut of a ceremony when I went back to add effects-- slow motion, color correct, etc. only to find that ANY time-change is jittery-- extremely jittery, like it's skipping frames.
For trial purposes I created a new timeline with only one video clip placed multiple times. I reduced one to 50% with frame-blending, the other 50% with NO frame-blending and the final using time re-mapping with frame-blending. At 50% I don't expect fluid movement, but they are all acceptable... Until I put a different timeline in the timeline (I think it's a "nested sequence").
When speed is slowed on ANY nested sequence it is jittery. Whether it is a single nested sequence or a multi-camera sequence, it jumps.
Has anyone else had this problem?! Is this a bug? I never noticed it until this wedding. I am using CS3 and I cannot afford the time to re-edit this ceremony with 2.0.... Unless I have no choice.

Hi Wil,
I have tried using both. Time remapping on the clip (not nested) works fine, so does 'speed change.' But both time remapping and speed change result in jumpy frames when applied to a nested sequenced clip.
I tried this on another (much lower system) and have found the same results. I am begining to think it is the footage but it seems odd that it is perfect when applied to a clip in the timeline but NOT to a timeline in the timeline (nested).
I am on vacation and do not have access to a faster machine until next late next week but for now I will try the export again to be sure Encore sees the same thing.
I am dumbfounded because I had been using 1.5, then 2.0 and now CS3 for weddings for years and have never noticed this. I have noticed it on the both the last project and now this current one.
I thought it could have been the original footage (or a camera problem except that the problems are not there until a nested sequence comes along. I will try moving the footage to my internal drive now and see what happens...
Thank you so far for giving me ideas.

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Hi Wil,
I have tried using both. Time remapping on the clip (not nested) works fine, so does 'speed change.' But both time remapping and speed change result in jumpy frames when applied to a nested sequenced clip.
I tried this on another (much lower system) and have found the same results. I am begining to think it is the footage but it seems odd that it is perfect when applied to a clip in the timeline but NOT to a timeline in the timeline (nested).
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I am dumbfounded because I had been using 1.5, then 2.0 and now CS3 for weddings for years and have never noticed this. I have noticed it on the both the last project and now this current one.
I thought it could have been the original footage (or a camera problem except that the problems are not there until a nested sequence comes along. I will try moving the footage to my internal drive now and see what happens...
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Message was edited by: Jerry Hofmann

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Go to Solution.
Attachments:
TestCode.zip ‏55 KB

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> My question is that the ram preview below is relatively smooth, but when I exported a PR4444 sequence to FCP, once in the timeline it's jerky and stutters. (Forgive the sloppy mask, it's now fixed). The stutters and jerks also appear when playing the 4444 clip back in QT10, and Vimeo.<
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Message was edited by: bogiesan

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Time remapping / slow motion extremely jumpy with nested sequence!

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