Just got back from a rather lengthy work trip. Upon my arrival, I had a windows update and an oculus update. I also downloaded the new endurance pack. Now when I start a race with more than 1 AI I have these massive stutters rendering the game unplayable. When I exit rF2 back to the steam or oculus home the stutters remain in the HMD. I have to reboot in order to get rid of them. The work around is to enter rF2 with no AI and then add them progressively...doing this everything works as it did before. -Win 10, gtx 980, oculus rift.