know this happened to me so many times after the last update, it also close your game and show a message like "counter-strike go failed, can not launch" (i will try to write down the proper message when I will see it again, probably tonight).
Everytime this happened I was playing hostage competitive on milita and more than one player got kicked at the same time (kicked or game closed) and trying to reconnect before the 3 minutes wait. It sucks, Valve should look at this bug.
Also I had a game that one player of the opposite team did not switch after the half time.
http://steamcommunity.com/sharedfile.../?id=133949412s