Repeated Crashing on Mesh Edit in UE 5.1.1

Dropping to DX11 is more of a workaround to keep working in the meantime, as the environmental issue causing the crash is still present. I’d say definitely try to update the drivers (maybe a fresh install incase there were corrupted portions). After that, definitely try out Graeme’s solution, as that’s solved it for a few users (while being annoying if you use their game ready drivers but if you’re on studio already shouldn’t be too big of a deal). Let me know how it goes!