I had the same issue with importing from Blender but was able to resolve it by making all the names in Blender and UE4 the same. This includes the names of the bones as well as the object’s overall name in Blender.
I had the same issue with importing from Blender but was able to resolve it by making all the names in Blender and UE4 the same. This includes the names of the bones as well as the object’s overall name in Blender.