I changed my imported skin and then switched back to my old one. When asked for body type, there were two blank spots. If clicked on one it shows the skin as nothing. When I tried to join one of my friends worlds, it said 'Unable to join because of corrupted skin' However after I joined with a different (non-imported) skin I was able to switch back to the 'corrupted' skin in the pause menu. My friends said they were unable to see me, my name tag, or anything I was holding. I went into third person and I was unable to see myself, however the dirt trail that appears while sprinting was still there. It may or may not be happening because I am using a texture pack that was meant for an older version of the game, however my friend who has the same texture pack has not had any problems with her imported skins.