Also I got a crash during the 5th and last round of a long captain match (2-2), where the animations got stuck (you probably know what I mean) but it didn't return me to the lobby, then I quit from the match, got the "please wait" window on the login screen, I had to quit the game since it was stuck, when I restarted the game it pulled the good old "login information couldn't be received" notification, I only got in after a dozen tries. It didn't cause the matchmaking problems since it was after I experienced something was wrong with matchmaking tho but probably something was going on with the servers.