"Avatar Creation Failed: Transfom 'bonename' is not an ancestor of 'bonename'"

So I imported a humanoid model and remapped a few bones that it said needed to be mapped, but when I apply the changes it says "
avatar creation failed:
Transform 'shin.L' is not an ancestor of 'foot.L'. "
But it is. I can't fix that because it's already fixed. The bone structure is all green and there's no error messages in the inspector on the configuration scene, but it gives me that "avatar creation failed" message when I try to save it. When I click done and go back, all the changes I made are gone. So I guess it's just not saving when I re-map the bones? Is there any way to fix this?

 

did you fix this? having the same issue