I had imported custom hair I had made in blender using .fbx .alb and the groom addon for 5.5, and it seems to crash everytime I turn path tracing on.

There is really no need for images since when I turn path tracer on, my unreal engine immediatly is unresponsive and my cpu/ram useage is low. I have even spent the better part of 15 minutes just waiting to see if it would do anything and nothing happened. With lumen it works perfectly fine but for some reason its only 5.5. I tried disabling and enabling any plugins or anything I changed. It worked perfectly fine in 5.4.4 but I made a 5.5 metahuman, tried to add path tracing, and it crashed. If anyone could help I realy really would appreciaet it becasue I have no hope left.