I set my strategy before the race in Hungary to 6 x SS for both drivers. During the first rounds of the race I changed the strategy to SS / S / S / S / S for the 1. driver und SS / SS / S / S / S for the 2. driver and added more fuel.
But as the driver go to pitstop, they choose SS and the fuel amount that I set before the race. In the first Stop I saw this and changed it manually. But on the next stop this happend again. I remember, that I saw this behaivout some days ago. I think it's not possible to change strategy during the race.