Freezing in Online Match After Character Selection

[se7enbishie]

Okay, so this is twice that this has happened with the same guy that I'm playing against in a ranked match. We manage to get through the character selection, gem selection, and color selection without a problem. After that, it loads the area where we are and starts the fight, but right after "Death From Above" is said, it freezes. No animation is going on, but there is music. It gives the "rotating ball of doom", basically telling me it's loading.

As of right now, the other person just left the room, but I had been waiting for the match to start for about 25 minutes. Before anyone asks, my PC rating is an "S".

Is this a bug or an exploit or what?