This happend often while joining party or friends on another levels. Game freeze (sometimes with 0% loading, sometimes with a black screen) and only thing that I can do - log out and after that log in again (opening main menu work normally while freeze).

Few minutes ago it happend five times in a row (sometimes it take 10 energy before loading, and freeze after that)... and I just cant start a game.

Also same bug happend many times when I try to enter game on the character screen. I click on the character and it show me "Heading into town" and nothing happends until I log out no matter how much wait.

I was trying to reinstall client but it not helped.