Yesterday , When on second room I completed, at some point after that unknown to me the walls between the two rooms disappeared after that it was impossible to make them two rooms again. The furniture in the first room kept wandering out beyond the walls. I’d manually drag it back into place, but later find it out beyond the room walls again.
This evening I’ve discovered I only have one plan in my app from history of plans. It’s done this before and no doubt they’ll come back but it’s not very convenient when I need to sit down and work on them now.