Actually, this is still happening, on two different computers. I verified the cache on the current one and it said it was fine. Installed it on another computer and it's happening over there too.

See this pic: http://gtm.steamproxy.vip/sharedfiles/filedetails/?id=266374455
And this game thread on GMR: multiplayerrobot.com/Game#7956

This helped me as well, hopefully. I'm having the same problem and I'm verifying now.