Some avatar costumes get this visual error as they're not supported by the mobile app...restart the phone, if it doesnt help change your constume, save and change back to what you wanted for re-test
when I chose change my style then tops the avatar looks ok
but when I chose dress up the avatar shows with no body in the games
btw the avatar looks ok in the xbox extra while editing
it's seems to me a bug some where
any way that's not so important but still it's a glitch