Since the newest skin menu fix, it takes a while for my skins to load, and sometimes, even while in a world without opening the menu, my avatar will swap to base Steve or base Alex. Also, I the button to edit a custom avatar shows up gray in the menu. Yesterday, I was going to play a map with my friend to race him, and both of our capes swapped. I had the Twitch heart cape equipped, he had the creeper cape equipped, and after a bit it swapped to him having the Twitch heart cape, and me having the creeper cape, without us touching anything in the menu. When we looked at the menu, it showed us wearing the right capes, even though in game we weren't.