Townies Keep Showing Up

I've been playing my save all day but in the past couple hours I've been getting random townies show up to my lot, knock on the door and just stand there. None of my sims know these townies and whenever I click on the, the only option that shows up is "Invite In". I have the Private Dwelling lot trait active and have disallowed all options (Vampires, Solicitors, Friends and Neighbours). I play on laptop and have tried clearing cache, starting my game without mods/cc, repairing my game and even resetting the townies via the "Reset Objects (Debug)" option but it stills occurs. I've no idea whats going on or how to stop it, any help is much appreciated (even if it's knowing I'm not the only one this is happening to haha).