Glad to help. And my apologies I misunderstood the OP.
I believe you have to set your import scale to 100. Place the meshes in the level and check scale again. The miniatures must be visible.
In this experiment, the metahuman scale was lost, so I had to import as 100 but the correct is to setup Blender scene units to 0.01 so that skeletons exported from UE will have scale of 0.01 and meshes scale of 1.
