Hi Matt, sorry to read this. I really thought turning the Shared Memory/UDP off had worked as I haven't had a multiplayer freeze since I changed those settings in the (unranked) GamerMuscle or other AMS2 ranked servers (I also did a Bathurst 10 lap with no issues). I couldn't make the GameTech stream today but will join tomorrow if I get time to see if it's the same for me and I suspect it will be based on your experience. The only positive is I can now switch the shared memory on and use Crew Chief once again. I may be clutching at straws but could it be something different in the way the lobbies are configured? (We know it isn't ranked/unranked but maybe something else). Though it also remains odd that I didn't have the issue in the GameTech Formula V10/RBR combo races. I have now experienced another player with what looked like the same issue in a race, their car made 4 big stutters back towards me, I seemingly overtook cleanly, their car then jumped way ahead, hit a barrier and flew up into the air. A few seconds later the same car was back on track and continued normally. Technical issues aside, always good to meet and race with another fast, clean and fair racer and thanks with your help trying to solve this.