After the update to the new GT3 Challengers pack my GT3 pack started to crash the game. Just a few hours earlier all the cars were working. Currently the - McLaren 650S GT3, Radical RXC Turbo GT3, Mercedes AMG GT3 and the Callaway Corvette C7 GT3 crash the game to the desktop the only car from this pack that loads is the Bentley Continental GT3. A track will load to the hundred percent mark then crash to the desktop. All other cars are working including the GT3 challengers pack and the Endurance pack. I have verified the game files and all is 100%, I have also unsubscribed and re downloaded all the cars in question and the problem still persists.