Crash when trying to start "heavy level" in UE5

I migrated my project from ue4.27.2 to ue5.0.1. When I starting a project on ue5.0.1, there are no problems, because the editor startup map is an empty level. But when I try to run a level that has a large number of actors, meshes, and etc the engine crashes. I tried to open meshes and levels without my character, I realized that the problem appears when trying to load my character’s blueprint or other blueprints with a lot of logic in them.

P.S. I’ve searched for a solution to my problem in all forums about ue4, but nothing has helped.

crash message:
Assertion failed: (InOffset & ~0x7FFFF) == 0 [File:D:\build++UE5\Sync\Engine\Source\Runtime\CoreUObject\Public\UObject\GarbageCollection.h] [Line: 108] Invalid GC Token Offset (524480), max is 524287

UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_Engine
UnrealEditor_CoreUObject
UnrealEditor_Engine
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_Core
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_ContentBrowserAssetDataSource
UnrealEditor_ContentBrowserAssetDataSource
UnrealEditor_ContentBrowserAssetDataSource
UnrealEditor_ContentBrowser
UnrealEditor_ContentBrowser
UnrealEditor_ContentBrowser
UnrealEditor_ContentBrowser
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_ApplicationCore
user32
user32
UnrealEditor_ApplicationCore
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
kernel32
ntdll

logs:
here

2 Likes

I have same problem Please did you find any solution?

Unfortunately not yet :confused:. I just decided to stay at ue 4.27.2

did you solve?