I have created a custom championship with this format: Silhouette Cars Qualy - Race 1 (10 mins) - Race 2 (15 mins) Usually I did all 3 sessions in a row, and everything was fine, but now I had to quit after Race 1 and when I continued with Race 2 I noticed the following issues: 1) The car setup screen was reset. The information on the previous laps were not available anymore. This made it difficult to adjust the fuel. 2) Much worse: The AI cars apparently had some trouble with the fuel, too. It seems that all AI cars did a pitstop to refuel. I assume that they had a lack of information, too, or still had set the estimation for 10 minutes, taken from Race 1. This is clearly a bug. 3) When I moved on to the next race, the laptimes from the previous race were displayed in setup menu, which does not make any sense.
Another single race championship. 2) from above happened when I accidentally clicked on "Finish session" at the start of the qualifying. BTW, a confirmation dialogue would be useful, at least when you havn't set a time yet. 3) seems to happen anytime you directly move on.