I´m still looking for a fix for my current issue, might be related to the same thing.
In short: I use lead pose component in my actor blueprint to control animation of all skeletal meshes in it with one “master” mesh.
Same thing that metahuman blueprint does.
If I enable raytracing, or rather “compute skin cache” (which is requireed for “support hardware raytracing”), unreal crashes.
If I disable the lead pose component, it doesn´t crash.
Would be cool if you could confirm that!
If you do not know how, I think I posted a steps by step guide in my thread about this: