That’s not how a normal rig looks and it isn’t the same as the bone structure in UE4. For example you can’t add IK to the rig in Blender and animate it using IK. If you use Automatic Bone Orientation when importing the rig looks fine but animations get broken in UE4. I would say it’s still broken. Edit: As in, UE4 - Blender - UE4 is broken. For just Blender - UE4 it is working correctly.