Hello, I'm following the tutorial at https://www.youtube.com/watch?v=12rmCgSlIjw

When I apply the 'xbot' avatar to my CC3 character, there is a complaint about the Hip bone. 
I'm looking for solutions but have not found any. 
CC3 character was exported to Unity / Imported with CC3 Tool 'Processing' on.
Mixamo xbot with t-pose and animations without skins were imported with 'Processing' turned off.

Ideas?