I was playing through Act II and got to the point where you have to search for Leon. Due to me micromanaging my party member's positions, the four I planned to go to the area were to arrive at separate times. Naturally after the first pair arrives, I could tab into the area and did so by accident. Instead of working like every other scripted encounter where you need to hit a button to start, I was immediately forced into the event with only half my party. Naturally, I lost and had to go back 2 days which lost me roughly an hour of progress (This was using autosaves, manual would have set me back a third day). I wouldn't have been so frustrated if I felt like the loss was my fault instead of the result of poor programming.