What did you try to do?
Start on the proper tyres (Soft when it's dry, Inters when it's wet) by using the advanced options. I set Soft as my main tyre and Inters when water is above 0mm
What happened instead?
THE GAME PUT ME ON MEDIUMS
Can the bug be reproduced?
yea
Additional comments:
I wonder if its possible to make this feature even more counterintuitive. This is the second time theres a problem with advanced strategy. Theres zero explanation in the game. Why do you have to mess up 3 times to learn somethin in this game???
GP2 devs. ARRRRGH!