Anyone else having this issue with their game: when I build a lot portions of my rooms or exterior walls completely disappear. I spent 3 days building another hotel that had 2 ground floors and four above-ground floors. As I was placing the bathrooms within my hotel suite rooms I noticed my entire fourth floor disappeared so I undid the action. So I attempted building bathrooms on the second floor and my third and fourth floor completely vanished. It's so frustrating and it has to be a glitch within the game that I hope is addressed and fixed in the upcoming December update.