Time Remapping leads to negative keyframe times on trimmed clips

[SjorsHijgenaar]

Hey all, 

I am completely new to After Effects, but I'm trying to use it as Premiere Pro won't let me combine speed ramping and scaling one clips and I read it should be much easier in After Effects. However, I don't get why the following is happening.

I have a long clip (~7 min) of which the final 20 seconds or so are interesting for my speed ramp. However when I trim the clip and enable time remapping, the beginning keyframe is placed at the beginning of the entire clip rather than the beginning of the trimmed clip, which I expected to happen.

I have tried numerous things (setting in and out, adjusting composition timelines, editing in Premiere Pro and switching to After Effects, and more), but nothing seems to prevent this from happening:

Is this in any way to be prevented? It is easy enough to create a new keyframe at the start of the trimmed clip as a workaround, but it just seems like undesirable behaviour in my opinion. 

Thanks in advance! 

[Mylenium]

It has never worked any differently. Rime-remapping is based on the source time, not the comp time and if it's realyl such an inconvenience, simply create a new master clip in Premiere that has the trim baked in.

Mylenium

[Ro Hackett · Accepted solution]

you could right-click and pre-compose the clip

- then double-click to go into it... trim your layer to the part you need (right click in the top of the time line and Trim Comp to Work Area)

- now Ctrl + K to bring up Comp settings and set Start Timecode to 00:00:00

- then come back out into the main and drop that pre-comp in ( you will see it is trimmed to size)

- then right click and set time-remapping

I think that is what you mean?  🤔

[SjorsHijgenaar]

Thank you so much, this is a quick resolve!