[Crash] - Client randomly freezing

Client will sometimes freeze in the middle of a game and never recover. Closing the client through task manager and reopening it gives an error at the patcher. Clicking play after this will result in the login client never opening. Repeating this yields the same result: Unexpected error, login client never launches.

Receiving steam messages during gameplay also causes this for me.

I have to restart my computer to solve this and by the time I login back in the game is over and the game result for me is "leaver."