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Fixed in Unity 2018.1



Found in


Issue ID




Skinned Mesh Renderer property Bounds does not change in Optimized Mesh as the animation play

Graphics - General



Priority: 2Necessary for shipping a final release


Severity: 3Secondary functionality broken

Reproduction steps:
1. Download project "" and open in Unity
2. Select scene "test"
3. Enable "Play" mode
4. Select object's "foot-test_Opt" child "body"

Expected: bounds of the mesh should change as the animation plays - "Expected.gif"
Actual: bounds of the mesh do not change - "Actual.gif"

Reproduced on: 2017.3.0a2; 2017.2.0b5; 5.6.3f1; 5.6.0b11
Not reproduced on: 5.6.0b4; 5.5.4p1
Regression introduced: 5.6.0b5

Fixed in: 2017.3.0b7, 2018.1.0a1.

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