I'm using the 1.13 version, GPxPatch 3.91. The problem happens in no matter what session. But probably it has more to do with my computer, as the same thing occurs on some other tracks (Sepang 2004, Hungaroring 2002).
Anyway, not a big deal, as it only occurs when I change cameras to view the other cars a few times rapidly after each other, for example: in external view going from car in P1 then P2, P3,... shortly after each other. (don't know how to explain it better)
Good luck on your upcoming projects, looking forward to them
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Bring back the racing