I've tried several times with different circuits and drivers, but the game crashes on starting a solo time-trial;
last text before crash is save data, after that the is only a message that there went something wrong and i should try again an it closes the game to the stadia-homepage.
Can someone help me (and future errors for everyone)?
Thanks, DrKaStrange#4088 (Karel)
You should report this to the developers, you can find all info here on how to send in a bug report, https://forums.codemasters.com/forum/12-technical-assistance/.
There are details on what to include in the bug report.
Hope you manage to get it sorted.