Thanks for the response GreenTea. There are multiple shader errors, not just FNiagara, which makes me think that it is failing to compile every shader. If I do a “recompile shaders all” command from the console it will also crash UE 5.2.1 with a “Crash inside the platform compiler!” error.
This project I am testing with has nothing in it that I have put in myself - it is just a pure blank project for now for ease of testing / diagnosis.
The Game.log file shows this right before it crashes. Is the “exceeded budget of 2.000000s” significant?
[2024.03.31-12.57.03:228][459]Cmd: r.shaderrecompile all
[2024.03.31-12.58.00:306][805]Cmd: recompileshaders all
[2024.03.31-12.58.03:285][805]LogStall: Stall detector ‘FShaderCompilingManager::BlockOnShaderMapCompletion’ exceeded budget of 2.000000s, reporting…
[2024.03.31-12.58.04:142][805]LogStall: Stall detector ‘FShaderCompilingManager::BlockOnShaderMapCompletion’ report submitted, and took 0.049958s
[2024.03.31-12.59.11:832][805]LogDerivedDataCache: C:/Users/david/AppData/Local/UnrealEngine/Common/DerivedDataCache: Maintenance finished in +00:00:36.093 and deleted 0 files with total size 0 MiB and 0 empty folders. Scanned 19947 files in 19418 folders with total size 138 MiB.
[2024.03.31-12.59.21:186][805]LogShaderCompilers: Error: SCW 1 Queued Jobs, Finished 0 single jobs
[2024.03.31-12.59.21:186][805]LogShaderCompilers: Error: Job 0 [Single] Failed: Global/FReflectionEnvironmentSkyLightingPS/6:/Engine/Private/ReflectionEnvironmentPixelShader.usf Type ‘FReflectionEnvironmentSkyLightingPS’ ‘/Engine/Private/ReflectionEnvironmentPixelShader.usf’ Entry ‘ReflectionEnvironmentSkyLighting’ Permutation 6
[2024.03.31-12.59.21:197][805]LogShaderCompilers: Error: Crash inside the platform compiler!
[2024.03.31-13.00.09:965][805]Message dialog closed, result: Ok, title: Message, text: Crash inside the platform compiler!