mbi Issue: Single frame glitch when falling back from Track 1 to Track 0. Description: When setting Track 1 to the EMPTY animation (clearing a track that previously disabled clipping), the renderer should immediately fall back to Track 0 (which has clipping enabled). Instead, there is a single frame where clipping is completely disabled before Track 0 takes over correctly. Hypothesis: This may be related to mesh deformation on the clipping slot rather than the clipping logic itself. Environment: Version: Spine 4.2.43 (Stable) Attachments: Video and reproduction project files included. spine-project-test-case.zip46kB
Misaki mbi Thank you for reporting the issue. I was able to reproduce it using the Spine project file you provided. You mentioned that mesh deformation might be involved, but based on my tests with versions 4.2 and 4.3-beta, the issue still occurs even after removing the deform key. I also reproduced the problem by exporting the skeleton you provided and opening it in SkeletonViewer, so I believe this is an issue that requires a fix. I will investigate when this behavior first appeared and then open a GitHub issue to address it.
