hopefully the context of this statement isn't that you restart - get somewhere in game, break - restart - get somewhere.
From what I've seen, although result times vary, generally the door fixes itself without having to start over.
Things that may be contributing to it are
- Leaving the door open when Transitioning areas (used to be pretty obvious when you were about to cross over into the mines (outside) but regardless, that's where I'm talking about)
- This may be Open but shop closed, or open open, I dunno. I've never personally had this problem, and I do all sorts of stuff
- Leaving door/shop open when Sleeping
- Leaving Door/shop open and then saving/exiting/reloading
- Some sort of Graphical combination + slight misclicks of hitboxes and client see both being performed because on one hand, misclick, but on the other, somehow some setting combination has made the real location "off" and you didn't actually misclick, thus, opening the door, but not really because misclick, and then actually opening the door causes it to "break"
- I dunno. Like I said. I don't ever experience this myself. All things "may" are just speculation on my part
- Additionals may include something being near it when being opened or shut - Or Hardware/software desync/lag