c24b540400
The issue was that during playback, the evaluated Grease Pencil ID is not being copied again for re-evaluation. This meant that the adjustments get re-applied over and over again. Ideally, we would restore the drawing pointers before modifiying them again, but this is a bit trickier to implement. To fix this issue for now, we do the layer adjustments during object data evaluation. Using the geometry set for modifier evaluation means that we copy the data and apply the adjustments for every object. In the future this can be optimized to only happen once per Grease Pencil ID (in `BKE_grease_pencil_eval_geometry`). Pull Request: https://projects.blender.org/blender/blender/pulls/135387
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