Mixamo Animation

Hi guys today I’ve tried to upload my character, all created with Blender, in Mixamo in order to use the Auto Rigging tool… But there is a problem…it say that They can’t read my file…
I’ve followed all the tutorial in order to have the right settings (all joined, obj file, <30Mb)
someone should help me please? :slight_smile:

thank you!
(if you want I can upload the blend file)