from unreal documentation, no collision : This body Will have no representation in the physics engine. It cannot be used for spatial queries (raycasts, sweeps, overlaps) or simulation (rigid body, constraints).
from fgear documentation of custom collision : You should untick CollisionResponse of physicsasset or both colliders will be active.
so it’s normal that the engine crashes, we assume that you are providing a mesh with rigidbody.