Unreal Crash ? ! Seriously… Just Because I Closed a Sub-Window ? !

2025-08-26

Closing nothing more than a curve file’s sub-window actually crashed UE — and it ended up crashing every UE5 version on this PC.

And deleting the UE cache, reinstalling the engine, and restarting the computer did not resolve the issue.

Finally, I fixed the solution was really simple…

(Video)