Everything looks good in blender...then once uploaded the arms, legs, and head are backwards from the chest. Looks super awkward. There is not a way to edit it inside of mixamo, I would love your thoughts and assitance! Working in the newest version of blender as well. Thanks.
yes its a common issue with Blender misreading the Fbx files... your best fix is to upload the model in Obj format to Mixamo to get it rigged correct then download in Fbx and do whatever edits to need from there