Lack of preparedness and experience with the camera. I didn't sync the remote. I manually turned it on and wasted 10 mins in the pit thinking we were going to go any minute, then when the red flag happened we were sitting still for another 10 mins. So have turned it off then, but was not even thinking of it.
All in its really 20 mins of action (3 laps of the instructor and 1.5 of me).