That's odd, I'm playing it and I don't have these issues and I've been playing the whole town and moving people in/out and around. When I did have a problem it was the tree of prosperity from Lunar Lakes given as a wedding gift that was the issue and even that cleared itself. I use error trap and overwatch a lot of store content, no cc but it doesn't sound like that's your issue. I have Ainsley married with her spouse and their baby in that boathouse. I do have to reset some of the cars for some that abandon them during saves, but not often.
