Player 2 always spawns in with a default skin

I don't know why, but me and my sister are logged in with the PlayStation Network, yet player 2 always spawns with a default skin despite both of us having customized appearances. I don't know the version or the operating system of the console, but I assume it's the most up-to-date. This is really frustrating me because we both have customized avatar's and yet we can only see one of them at a time.