Not sure if this is a bug, but should be looked closer to and improved. After taking the driver in for pit in practice session 1 and improve the cars setup based on the drivers feedback, the gap to practice leader stay pretty much the same. I find this very strange when the setup has improved significantly and sometimes even put on new fresh tyres. I know the other drivers also have improved their setup, but seems to be very little movement in lap times.
I'm in season 3 and normally I manage practice session 1 for best possible setup and I simulate session 2 and 3. After session 3 it seems to work better though.
I'm in season 3 and normally I manage practice session 1 for best possible setup and I simulate session 2 and 3. After session 3 it seems to work better though.