UE5.3.2 Hyperthreading Crash how to fix?

Development Platform & Builds
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1

Hey all,

Some of my customers are having issues with this crash:

LowLevelFatalError [File:D:\build++UE5\Sync\Engine\Source\Runtime\RenderCore\Private\ShaderCodeArchive.cpp] [Line: 385] DecompressShaderWithOodleAndExtraLogging(): Could not decompress shader group with Oodle. Group Index: 278 Group IoStoreHash:99a83b16282872953e642f09 Group NumShaders: 18 Shader Index: 4181 Shader In-group Index: 278 Shader Hash: 185DDBAB268A4A497A65F142DB6703A40D5FB5D5

I googled the error and it seems to be associated with Hyperthreading from latest Intel CPUs causing the crashes.

How can I fix it? They also said that a previous version (I think 5.3.0) did not have the crash.
Is this only fixed in 5.4 or 5.5?

Thank you

2

no idea. but you could play with the compressions settings and use either a different compression level or compression algorithm (i.e not oodle)

3

Alright, I will try that. Thank you.

4

Update your bios. It’s probably the intel microcode instability if its 13th orh 14th gen.

5

I’ll pass this on, thank you.