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Fixed in Unity 2019.2



Found in


Issue ID




Bone related errors and animation issues, crashes when importing fbx with Index Format set to 16bit

Asset Importers



Priority: 2Necessary for shipping a final release


Severity: 1Crash, freeze, data loss, work stops

How to reproduce:
1. Open the attached project
2. Reimport "room_port.fbx" in the Project view
3. Check the Console

Actual result: There are many errors thrown and the model is corrupted. (May cause hard crashes)
Expected result: No errors are thrown and the fbx model works correctly.

Reproducible with: 2019.2.0a9, 2019.1.0b8, 2019.1.0a9.
Regression introduced in: 2019.1.0a9.
Not reproducible with: 2019.1.0a8, 2018.3.10f1, 2018.1.9f2.

The issue comes only when Index Format is set to "16 bits".

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