I am attempting to round trip a skeletal mesh from unreal to maya and back using fbx.I can not reimport it to unreal without getting a “failed to merge bones error”. This occurs even if I do nothing with the mesh or the skeleton in maya

I am attempting to round trip a skeletal mesh from unreal to maya and back using fbx.I can not reimport it to unreal without getting a “failed to merge bones error”. This occurs even if I do nothing with the mesh or the skeleton in maya.