Crashing whenever sim is added to CAS from my library

For Context, I'm playing the Sims on Xbox, and trying to start a brand new save.

I tried to make a sim earlier in a brand new save to start playing with him, but then when I moved him into a house, the game crashed. I tried again later by starting a new save with someone completely random and then moving my first sim into the new house, which still crashed the game. I don't know if it's to do with something he's wearing or whatever, but it seems like only this sim will crash the game.