I have also experienced problems when playing a household in RH, and when searching on it some players report having exchanged the Bistro, and remodeled some lots with obvious faults, like too small rooms and doors and stairs that cannot be reached. I found no explicit directions to certain lots though except the restaurant; and it seems the player that have redone a lot of other EA worlds, ellacharmed, have not touched RH, at least I could not find any such fix.
I moved my household to another world for other reasons, and have not played in RH since then, but the tip is to either go through the community and residential lots fixing appearant issues, and perhaps you are helped by the NRaas mods telling you exactly where the sims get stuck; or to try to fix any eventual issues of the world routing in CAW, if that feels okey. There are long and complicated descriptions on how to do this, on MTS; I am not sure if I can link them here though. You could also ask in building sections for competent advise on that.
Sorry, not much of a help, but the world comes with so many other things worth while, I think, so not totally wasted money :smile: