Don't forget that you can type L or LOOK to refresh the room description. You don't have to exit the room and come back.
Adventuron has been testing my game and we discovered that rewind/undo worked in the editor, but not in the compiled game. Could this be your issue? If so, I think it is fixed in beta 27b, but I haven't compiled a game with that version yet. Try that, otherwise wait until the next build. Adventuron is normally very quick to fix any bugs that we find and he said he's working on it.