Here the official info, time to try!
Racers, we've pushed a change to dramatically reduce the difficulty of race 11.2 in the BMW Driving Experience M4 Racing Championship. Please force-close and reopen your game to download the required data. Thank you again for your patience!
https://twitter.com/realracing/status/1060045437854343168?s=21
No info about any refund or extra rewards for the trouble :-)