System Information
Operating system: win 10
Graphics card: gtx 1060 6gb
Blender Version
2.80
Worked: (optional)
Short description of error
I'm working on my game and use ue4 + blender. I make root animation in blender and export it to ue4. But blender add one more root bone upper my root bone with root motion. As a result, root motion does not work. This extra root is very bad for game development, because it make very hardly too compare blender skeleton to another skeleton in ue4. And add more monkey work.
Exact steps for others to reproduce the error

