Hi, Everyone. My name is Rosario. I wanna know about the copyright of ours character rig when I load in Mixamo´s Page.
1st you left out some details but lets assume your account is a personal [not enterprise or school] and that you do own the licence for this model BEFORE uploading it to Mixamo
if you now download it with animation / rigged then you still own the model and are allowed to use the Mixamo assets for your project