Mixamo skeleton View problem

[Olivia30681173tf2i]

Hi i had made a character model, combine them together, and i use mixamo to auto rig my model and when i turn on skeleton mode in mixamo my character look like this (pic2), normally it should look like (pic 3), does anyone know why does this happen? Much appreciated.

[Ussnorway]

yes it happens because you used a non-standard file and Mixamo can't read that type