Stuck in the executioner's house.
Did the thief quest after talking to the miller. Got to the executioner's house, fed the dogs, talked to the executioner, and then went inside the house. After lock-picking the chest in the immediate room, I went into the room on the right. I had some trouble getting through the door, and when I tried to leave I couldn't escape. I had to load to last save.
I'm streaming the whole experience on twitch, so the whole thing was recorded:
Go to 1:36:40.
Twitch keeps videos for 14 days I believe. I streamed this Feb 14, 2018, so if you see this bug 15 days from then don't bother clicking on the link.
Great game though guys, keep up the good work. Bugs or no bugs this was everything I hoped it would be when I first backed it.