[ARCHIVED] [FR] Unit gets overwritten instead of being able to add up to 6

I'm playing The sims 4 For Rent for a long time and I can't assign a new unit to any room. When I try it, the game just deletes the previous unit tag, and creates a new one. The problem is that I can't create another unit without substituing to the previous one, it keeps the old assigned rooms, and I can't take them off. Someone help meeeeee