title: Input bones do not match the skeleton of the Avatar
body: <p>I'm trying to setup a model with animations from mixamo, but this error keep popping :</p>
  
  <blockquote>
    <p>The input bones do not match the skeleton of the Avatar(avatar).
    Please check if the Avatar is generated in optimized mode, or if the
    Avatar is valid for the attached SkinnedMeshRenderer.</p>
  </blockquote>
  
  <p>I used the main fbx to generate a humanoid avatar, then imported fbx with animations and made them use that avatar.</p>
  
  <p>I tried to check/uncheck "Optimize game objects", but can't see no change.
  The avatar seems totally valid, as I can move every muscle as expected is the config window...</p>
  
  <p>How can I find the source of this problem ?</p>