My skins are all black/corrupted.

Hello. While cross platform playing with my friend, I noticed when I wanted to pick a new Minecraft skin, it was all black, and whenever I tried to join a game, it said "Invalid or corrupt skin." I tried all my skins and even tried new ones but it still didn't work, I could Steve and Alex, and the skins from the Minecraft shop and stuff, but the Custom Skins weren't working. 

From a fan, Tony Ngo.

        **