People should get penalised for putting tyres, boards etc...all over the track, it's a serious problem here. Some of my best laps got ruined because of the tyres all over the track just after the last turn.
it can also be caused on lag on someone elses screen, it has happened to me, someone going on about Tyres but i did not see any :/ its something that cant be ironed out in my opinion. unless someone generally flew into the tyres on purpose.
Just completed qualifying and there were 3 of us in session. No one hit the T17 wall, and yet there were tires scattered throughout the turn. It's one of those things you just have to deal with, and it sucks.