Mixamo's Auto-Rigging is Having a Bad Day

it wasn't actually an fbx, it was a zip file containing an obj, mtl, and textures. either way, i would like to know.

yes he is tposingwhen i try it. perhaps, since this is from dr. mario world (mobile), maybe nintendo actually made the model so the feet are actually connected. at least one good thing came from this, and thats a hilarious mistake of an animation that i accidentally made while trying to fix this. you see, one of the times i tried, mixamo all of a sudden once i rigged the parts, mario was rigged, but his rigging was backwards(the back of his head was rigged as the front, etc.) and his feet were conjoined! so when i was experimenting and put one of the dances on him, it was so hilarious that i saved it and posted it on sketchfab! view the animation here.