Created attachment 178718 [details]
Video of the bug

SUMMARY
Using a transform mask to animate a layer/layer group's rotation and then resizing the canvas causes the animated layer to move around diagonally instead of rotating. I wasn't able to reproduce the bug by just animating its position, though I didn't test scale/shear.

STEPS TO REPRODUCE
1. Create a paint layer and add a transform mask to it.
2. In the animation curves docker, add a few keyframes to the transform mask.
3. Rotate the transform mask using the transform tool.
4. Resize the canvas, whether directly or by trimming to the current layer/selection.
5. Play the animation.

OBSERVED RESULT
The animated layer moves around diagonally.

EXPECTED RESULT
The animated layer rotates the same way regardless of canvas size.

SOFTWARE/OS VERSIONS
Windows 10, version 22H2