metahuman assembly Crash

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Unhandled Exception: EXCEPTION_ACCESS_VIOLATION 0xffffffffffffffff

UnrealEditor_Engine

UnrealEditor_Engine

UnrealEditor_Engine

UnrealEditor_Renderer

UnrealEditor_Engine

UnrealEditor_Renderer

UnrealEditor_Renderer

UnrealEditor_Renderer

UnrealEditor_Renderer

UnrealEditor_Renderer

UnrealEditor_Renderer

UnrealEditor_Renderer

UnrealEditor_Renderer

UnrealEditor_Core

UnrealEditor_Core

UnrealEditor_Core

UnrealEditor_Core

UnrealEditor_Core

UnrealEditor_Core

UnrealEditor_Core

kernel32

ntdll

I am trying to assemble a metahuman Character. Everytime I do it, the assembly goes through, but If I save or do anything else in the window of unrel, it crashes and gives me this error.

I’ve tried to ask claude and I tried all sorts of bug fixes:

Disable hair and tried to assemble it

Health test of my gpu 3090 rtx. Perfect conditons

use a default metahuman (Maybe the head I was using waas broken). Still crashed.

Created a new fresh project, new metahuman, still crashed

Disabled raytracing, still crashed

Deleted all the temporary and cache folders, still crashed.

My pc specs are Nvidia 3090 rtx 24 gb vram
THreadripper 3960x

128g of ram