One more weird one...
On my first playthrough as a Rogue, I robbed Von Darkles' house before he invited me to "tea". I didn't do that deliberately - I just accidentally did things out of order. Anyways, one of the ways to rob his house involves pushing the statue so that you can use it to access the upper level. The next time I visited the city gates, I was invited to his house. After taking my leave, I immediately went back inside, just because I was curious. Sure enough, the statue was still moved and I was able to climb it in broad daylight, even with the mayor's housekeeper present! Once upstairs, both Von Darkles and Voleris were there, but I couldn't interact with either of them. Perhaps the easiest way to address this is to make Roehm unable to climb the statue during the day.
I hope none of this is taken as negative - I really do think this is a fantastic game and am trying to be helpful. Can't wait for the patch!