Unity Issue Tracker - Multiplayer Play Mode Additional Editor instances crash on SourceAssetDBWriteTxn::Run when calling ShaderUtil.CreateShaderAsset() at runtime

Active

Under Consideration for 6000.5.X

Votes

1

Found in

6000.0.45f1

6000.1.0b14

6000.2.0a8

6000.3.0a1

6000.4.0a1

6000.5.0a1

Issue ID

UUM-102348

Regression

No

Multiplayer Play Mode Additional Editor instances crash on SourceAssetDBWriteTxn::Run when calling ShaderUtil.CreateShaderAsset() at runtime

Shader System

-

Apr 07, 2025

How to reproduce:
1. Open the attached “IN-98800_MPPM_Shader.zip” project
2. Open the “SampleScene”
3. Select the “2p” Play Mode scenario
4. Enter Play Mode
5. Observe the crash

Reproducible in: 2023.1.0b1, 6000.0.45f1, 6000.1.0b14. 6000.2.0a8
Could not test with: 2022.3.61f1 (Multiplayer Play Mode package is not supported)

Reproducible on: Windows 11
Not reproducible on: No other environments tested

First few lines of stacktrace:

{noformat}0x00007FFC79262C5C (Unity) SourceAssetDBWriteTxn::Run
0x00007FFC78FFFDA7 (Unity) ShaderCompilerClearIncludesCache
0x00007FFC78A62571 (Unity) DoShaderImportProcessing
0x00007FFC78A70076 (Unity) ShaderImporter::UpdateShaderWithSource
0x00007FFC78A622AB (Unity) ShaderImporter::CreateShaderAssetFromScript
0x00007FFC77242F33 (Unity) ShaderUtil_CUSTOM_CreateShaderAsset{noformat}

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