I was playing last night and encountered my first game breaking bug. I walked into the war room and a cutscene started. I knew something was wrong when the door behind me still said "open" on it while the cutscene played. A conversation began and the wheel popped up. But I couldn't choose any of the responses. I could also go into the inventory menu and bring up the powers menu while in conversation. I was stuck and had to reload.
In addition to that it's been mostly minor bugs. People sliding sideways into place. I got stuck in a wheel barrel and had to switch characters. My favorite bug so far is having a ram spawn into the rafters of a building and watching it panic and run around above our heads. What bugs have you guys run into?