I started my Li’l Brudders building a house. While building, they went to bed, and while they were sleeping, I saved the game and quit. Today, I resumed the game, and I can’t get them to finish building the house. I can do some things with the house menu in terms of removing (which only removes the roof) and I even got them to finish building the roof on a house with no back wall.
So really, this is a collection of bugs. The primary bug, though, is that they wouldn’t resume building the house after the sequence in the title.