I can't launch a session because the UEFN crashes every time I try to validate my project

[BRGEzedeRocco]

Hi @Rafamatheus2010 ,

Here’s a post that might help. Although the error mentioned there occurs in Unreal Engine rather than UEFN, the solution may still apply since it’s the same error you’re experiencing.

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Fatal error: [File:D:\build++UE5\Sync\Engine\Source\Runtime\Core\Private\Serialization\LargeMemoryReader.cpp] [Line: 22] Tried to initialize an FLargeMemoryReader with a null or empty buffer. Archive name: None. feel like crying, none of my auto saves are working and cant open my project up

Hope it helps!