I’ve been running into this issue as well, UE editor crashing when dropping in the metahuman into the scene. (iMac 4K 2017, i5-7500, 32GB RAM, Radeon 560 Pro).
I managed to fix this though, and these two posts pointed me in the right direction:
- MetaHuman crashes Unreal with unregistered hair components - Development Discussion / MetaHuman Creator - Unreal Engine Forums
- METAHUMAN Hair simulations - turn em off - Development Discussion / MetaHuman Creator - Unreal Engine Forums
I disabled hair simulations and now it works on my end.
To do this, look for the Groom Asset and disable the hair simulation.
Hope this helps!