Premature Race Ending - B Class - Spa - Lap 2/3

Was in a B class hopper today, just now actually. Racing with about 9 people, I was in first place coming around to the last part of Spa 2nd lap when the race timer started counting down. Everyone in the lobby was like Whaat?

I do not know how to reproduce this bug.

The only other information I can tell you is that the person who was in First in the events screen had a 3:00:00 lap time and was not in the lobby when we went back in. Everyone else was DNF’d