The transparent trainer sometimes isn't transparent and it can collide with your car. But that bug happened in previous builds too. Mostly only in first lap (the one not timed) when you just start practice and transparent car is already on the track. After that lap ghost car reset and get its transparency. At least that was in my case.
Yeah, sometimes it became solid. I saw this in previous builds often. When it finishes lap it became solid and begin to brake with all wheels locked, creating huge cloud of smoke, sometimes crashing into the pitwall. @realkman666 When AI catching up transparent trainer, it isn't just driving through it but trying to overtake it without collision (and failing miserably because trainer doesn't move out when they already side by side). Also, trainer shown in standings table with laptime faster than mine. Pretty dirty implementation i would say.