halp

I just moved one of my newly-graduated Sims into an apartment back in the main hood – and then two exact clones of that Sim (same appearance and name) moved into the empty apartment units. D: What’s going on? Should I be super worried? I have Cyjon’s Townie Apartment Residents mod installed, but that shouldn’t cause this problem. :

I have a fairly recent neighborhood backup (I think I’d only need to replay one family) just in case, but I’m reluctant to play any further before I know for sure what’s going on. If the apartment lot is glitchy, I can move the Sims out and demolish it, but I want to make sure that doesn’t cause any problems, either. :

EDIT: omg I unpaused the game and it got worse

EDIT EDIT: OMG 

EDIT EDIT EDIT: *FURIOUSLY EXITS WITHOUT SAVING*

HELP?!!?