This was a valid lap on nürburgring sprint. Maybe the white lines from the 24h layout shortcut affect things when they shouldnt?
In Alessandro Ottaviani's track guide for the Alpine A110 at Nürburgring, he talked about white lines not being track limits between the end of the curb and where the two lines come together. The way he talked about it made it seem like it's on purpose for me, although I consider it confusing as well. It could still be a bug though, as I can't remember another case where white lines of other layouts messed up track limits.
There are several inconsistencies in the track limits of Mid Ohio Full (with the FR US). Crew Chief warns me but I don't the an in-game message that this lap doesn't count. Sometimes the purple sectors stay, sometimes they disappear. The counter continues but the laptime doesn't count. PS: On Leaderboard and Free Practice. Now I also have it on Road America GP with the Tatuus F4? Going to delete the simbin, check files, etc. because yesterday everything was fine. Everything checks out but the problem is still there on multiple tracks. Uninstalled the game and reinstalling right now.