I’m not sure what triggered this crash event, it only recently came to my attention trying to open the project just this morning, and I was met with this error and crash at the end of the loading splash screen for the editor launcher. The last thing I remember doing was adding other project files to the project, but I don’t see why that would alone trigger the event. Researching fixes and known issues around the error and currently looking for a workaround, any insight or help is appreciated.
Initial Crash reporter log reads as follows:
Assertion failed: bUncompressMemorySucceeded [File:D:/Build/++UE4/Sync/Engine/Source/Runtime/Core/Private/Serialization/Archive.cpp] [Line: 763]
Failed to uncompress data in TetherDemo.umap. Check log for details.
UE4Editor_Core
UE4Editor_Core
UE4Editor_Core
UE4Editor_Core
UE4Editor_CoreUObject
UE4Editor_CoreUObject
UE4Editor_CoreUObject
UE4Editor_CoreUObject
UE4Editor_MeshDescription
UE4Editor_Engine
UE4Editor_Engine
UE4Editor_MeshBuilder
UE4Editor_MeshBuilder
UE4Editor_Engine
UE4Editor_Engine
UE4Editor_Engine
UE4Editor_CoreUObject
UE4Editor_Engine
UE4Editor_CoreUObject
UE4Editor_CoreUObject
UE4Editor_CoreUObject
UE4Editor_CoreUObject
UE4Editor_CoreUObject
UE4Editor_UnrealEd
UE4Editor_UnrealEd
UE4Editor_UnrealEd
UE4Editor_UnrealEd
UE4Editor_UnrealEd
UE4Editor_UnrealEd
UE4Editor_UnrealEd
UE4Editor_UnrealEd
UE4Editor
UE4Editor
UE4Editor
UE4Editor
kernel32
ntdll