Room Detection Not Updating

The wonky room outline here is due to the fact that there was a tree overlapping the bottom left corner when I initially placed the floor. But it doesn't update with the tree removal or placement of other building pieces or even when the pieces are built. Not sure if it's just a visual bug with the outline or if parts inside actually don't read as the same room.

https://steamuserimages-a.akamaihd.net/ugc/1817763657640120042/6052C9DBE878A5FA93A96EEAFB802F88E176E503/?imw=5000&imh=5000&ima=fit&impolicy=Letterbox&imcolor=%23000000&letterbox=false