Client counts down to 0 in matchmaking lobby but won't start game

Client counts down to 0 in matchmaking lobby but wouldn't launch the game. This effected everybody in the lobby, and it happened in a rank game so no one wanted to dodge. We all sat in the lobby for 5 minutes before someone decided to be a hero and leave.

Here's a screenshot of the matchmaking lobby. Even after two players left the client wouldn't return to the home page. Screenshot