Bug #255

Game fails to start due to shader compilation error

Status:	Open
Priority:	Critical
Added by:	robinio187 on April 12, '26
Assigned to:	Unassigned
Due date:
Reported for:	DBH_Garage_Hotfix_20260327 Auto

Steps to Reproduce

1. Update the game to the latest version (backrooms update).
2. Attempt to start the game.
3. Observe that the game does not start.
4. Note the message received when trying to start the game.
5. Reinstall the game.
6. Update the graphics card drivers.
7. Attempt to start the game again.

Explanation

LowLevelFatalError [File:C:\UE\Engine\Source\Runtime\Engine\Private\ShaderCompiler\ShaderCompiler.cpp] [Line: 7173]
Missing global shader FRecomputeTangentsPerVertexPassCS<1>'s permutation 0, Please make sure cooking was successful.

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