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Fixed in 7.0.10, 9.0.2, 10.0.0



Found in [Package]


Issue ID




[2D] Using undo in the Skinning Editor after moving bones and geometry with the weight brush disfigures the Sprite

Package: 2D Animation


To reproduce:
1. Open the attached user's project ""
2. Select a sprite in the Samples directory (e.g. Assets/Samples/2D Animation/10.0.0-pre.1/Samples/Character/Sprites/Fei.psb)
3. Open Sprite Editor (Window -> 2D -> Sprite Editor)
4. Select Weight Brush
5. Double-click the sprite
6. Move or rotate a bone
7. Use the weight brush to move the geometry nodes
8. Undo

Expected: Undo reverts the action of the weight brush
Actual: Sprite is disfigured unexpectedly (See attached 2022-11-30 2011-56-41.mkv)

Reproduces on: 2D Animation 7.0.1 - 10.0.0-pre.1 (2021.3.15f1, 2022.1.23f1, 2022.2.0f1, 2023.1.0a21)
Does not reproduce on: 2D Animation 6.0.7 (2021.1.28f1)

  1. Resolution Note (fix version 9.0.2):

    This will be fixed in 2D Animation 9.0.2

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