So Me and two friends where playing in a world one of us on Xbox, me and the player being on windows 10 with custom skins and upon me joining it forced my custom skin into being the same skin as his so I just decided to switch it back and hoped that would be the end of it, but when I switched to my skin it changed his custom skin to match mine which got on his nerves so he switched it back and that changed my skin again. After that we decided that maybe reloading the world would fix it and that didn't work at all, Later on two more friends joined one on windows 10 the other on mobile, the user on mobile also had a custom skin and upon them joining the game me and my friend's skins where changed to theirs. This bug isn't necessarily game breaking at all but it is a massive annoyance among me and my friends.