mixamo DISTORTING my CHARACTER, when RENDER in BLENDER it shows TRANSPARENCY on character PLS HELP!!

something is wrong with mixamo, it worked fine for me many of other times but now every time I upload my character it distorts it, I'm using the same fbx. I always have and I have it saved across a few different hard drives, I've tried different computers and laptops, different animations and no matter what is still distorting my character on the site and then if I try to download and import it to blender the render is even worse it shows transparency in all random spots on character or distorts the whole character please help