I got animation from mixamo to play it in my game and it works.
I needed to change the right hand position at the end of animation. I made this change in Blender. Now when I export it to unity as an FBX file, I got the following error message:
Copied Avatar Rig Configuration mis-match. Transform hierarchy does not match:
Transform 'mixamorig:Hips' for human bone 'Hips' not found
If I click on the configuration button, the rig mapping looks fine - all bones in their place:
How can I fix this?
For reference, here are the files I'm using: