Ghost Towns

My issue started out with getting error notifications for S4MP when loading into a game, despite having uninstalled S4MP, and being unable to delete saves created while using S4MP. I ignored the issue for as long as I could, but eventually I endeavored to fix it. I tried repairing my game through the EA app, tried uninstalling my game (including all packs) and reinstalled, expecting it to be a fresh game, but everything reinstalled that I had before. So then I tried clearing cache and deleting every trace of S4MP still on my computer. This did fix the S4MP error popups, but I still had saves I couldn't delete. However, I decided this was good enough and proceeded to play as normal. I created a new save, made a new sim, moved her onto a lot and got an error stating the game failed to load (102:d5a74c31:7574b0e7). I retried a few times and got the same result, so then I deleted some saves that I could part with (made apart from S4MP), deleted some mods I could part with, repaired the game, and restarted my computer. I tried to give my sim a home once again, and it actually worked. Success. However, after I finished furnishing her new home and went to the world view, I realized not a single home was occupied other than hers. In any map. And looking back, I think it had been that way (sort of) since I created the save, because it would show certain lots as unavailable (as if someone lived there), but didn't show the occupant as it normally would. I actually thought it may be a weird update that they no longer preview who occupies a lot. I loaded a previous save and that world had occupants, so I assumed it was something wrong with the newest save I created. I decided to stick to my old one that I knew was fine - until today when I backed out of a house I was working on and the entire population was raptured. At this point, I think I'll have to figure out how to completely reset my game to have a chance of fixing it.