I think I just hit a fun one trying to copy a clip with keyframed rotoscoping.
In the copy, the rotoscope edit points in the monitor all appear in the correct places at the correct times for each keyframe, but the actually applied masking appears to be time shifted, so what is unmasked at any point in time is the state the mask should be in later in the timeline.
The timing seems to look as if all of the keyframes were shifted one place to the left when the mask is applied to the clip.
Opening the project in 24.02.2 lets me copy that clip correctly, and it then stays correct if I resume editing with 25.05.0 again.
I have a similar issue. when i add my rotoscope shape it is shifted and so if i move it to make it correct, its fine in the editor but when i go to render it the output file had the rotoscoping all messed up
Yes, I can confim the issue I saw still appears to be present in the 24.12.1 appimage.
Here’s a simple way to reproduce it:
Drop a colour clip on track 1 (so you can see the masking).
Create a title clip with a simple small rectangle and drop it on track 2.
To the title clip:
add a transform with 3 keyframes, leaving it in the same position for the first second, then moving it across the frame until the end of the clip.
add a rotoscope mask with 3 keyframes, with the mask points on each of the corners of the rectangle at each of the transform keyframes.
Observe that the mask correctly follows the motion of the rectangle.
Then copy and paste the title clip to a later position on track 2. Observe that the original still behaves as expected, but in the copy the mask becomes desyncronised. The monitor edit handles all appear in the correct place, but the actual mask appears to move as if the second keyframe was not present.