ok the easiest solution is to re-name the armature in the data section and auctually use that as your root bone, other wise you’ll have to edit the fbx
looks like there was quite i change in the code to add “leaf bones” so atm i’ve no idea how to edit it to stop it exporting the armature as an extra bone
if you need to add anims to an existing rig that you have in UE4 then export it from ue4 as fbx and import it to blender, that way it works once you delete the extra helper/object on the root