None of the rooms' abilities, no matter how upgraded work at all. I click the buttons, but nothing happens at all.
In fact, I also suspect that the character events aren't working either. At this point I've maxed Az'ea completely, but still have only seen a couple of flashbacks from her "recruiting" the goblin and what follows in her village.
I also haven't found any of the scenes mentioned in the room upgrades, despite having upgraded all of them completely. The only scenes available are the three (or four, with Az'ea's one extra variation) in the evening "ritual".