Doing a direct connect to my friends server - he is the host and I am a client. No firewalls up, correct IP, all runs beautifully and we can play just fine.

Then, after the round ends, he enters into the next lobby screen and I am stuck in a loading screen which freezes in place indefinitely. I am able to get task manager to force it closed and then restart the game and connect to him just fine.

Is there a reason it WILL NOT load between maps? Even just restarting a failed mission causes the freeze.