Aero model looks janky

My character model comes in looking really janky and I can't figure out why. The model was created using the Polycam app (photogrammetry), exported as .OBJ, then the whole .OBJ zip folder was drag-and-dropped into Mixamo to rig and add an animation. Then it was saved as .FBX (binary) and imported into Aero desktop, where I added the behavior (the Mixamo animation) and saved as a Dimension file (Aero Experience) on the Creative Cloud. But when I open it on Aero mobile app on my iphone, the character model looks bisected down the middle and really distorted and damaged looking. Any ideas what is going wrong??