The patch download is bugged, because me and my friend cant launch the game, it keeps downloading in a bucle.
Try restarting Steam to see if that fixes it.
Thats the first thing i did
Also after you have closed steam check your task manager to make sure no steam processes are still running as it will confuse the hell out of steam when you launch it next.
I’d fully restart your PC just to be sure all processes were stopped.
It works fine , thank you for replies