I've encountered several glitches in the small red wooden house with the concrete base.
1.) You can't fit through the door at the bottom of the stairs
2.) The door at the bottom of the stairs opens into the wall and won't close
3.) You cannot place logs/campfire into the fireplace.
I haven't tried to reproduce but I've encountered a few other houses that fireplaces don't work and other buildings where you cannot fit through the door. I assumed it was the same issue.
1.) Approach the Door and try to walk through, you'll have to crouch to fit.
2.) Open and close the same door from 1.), when closed it will disappear into the wall instead of blocking the doorway.
3.) construct a campfire and place it in your hands, the only message received is "Place fireplace on ground" which cannot be done. Unable to place in the fireplace.
Was just going to turn this one in. I could get through the door on experimental, but door is still opening weird.