I've been playing for the past few days, with no issue whatsoever.
However, this morning I ran into an issue. When I attempt to log in, the game goes to the all black "Now Loading" screen... and stays there. I'm forced to Alt+F4 to close the game, and when I do, my character (and the rest of the game screen) appears, as if I were logging out normally.
I cannot seem to find an answer to this, has anyone else experienced a similar issue?