It's not like the car is going rogue and just randomly making a right turn. It's trying to find the right side of the road in a rare intersection. A monorail in the middle of a city street is quite rare so this is an understandable failure-mode.
Look at the screen. It is going rogue, the line on the screen shows where the car is supposed to go, it abruptly decided it was going to take a right turn.
