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Fixed in 2020.3.X

Votes

0

Found in

2020.1.0a19

2020.2

2020.3

2020.3.1f1

Issue ID

1378177

Regression

Yes

Unity crashes on block_merge_next when importing an FBX file

Asset - Importers

-

Reproduction steps:
1. Create a new Unity project
2. Drag "1378177-sample.fbx" or "1378177-sample-2.fbx" file into the project

Expected result: Files are imported
Actual result: Editor crashes

Reproducible with: 2020.1.0a19, 2020.1.0a24, 2020.2.7f1, 2020.3.9f1
Not reproducible with: 2019.4.32f1, 2020.1.0a18, 2020.3.10f1, 2020.3.23f1, 2021.2.3f1, 2022.1.0a15

First lines of the stacktrace:
0 com.unity3d.UnityEditor5.x 0x000000010bca9a50 block_merge_next + 128
1 com.unity3d.UnityEditor5.x 0x000000010bca992f tlsf_free + 287
2 com.unity3d.UnityEditor5.x 0x000000010824ba71 DynamicHeapAllocator::Deallocate(void*) + 529
3 com.unity3d.UnityEditor5.x 0x000000010823509b DualThreadAllocator<DynamicHeapAllocator>::TryDeallocate(void*) + 139

  1. Resolution Note (fix version 2020.3):

    Fixed in 2020.3.10f1

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