Lol,for most cases it really is just a game bug. Like once i played, i lost game,so i like usual get back in town. IN min i get private message of my opponent blabbering something about me quit before she could do the final move. For me..honestly i actually have had only few good games. Like from 10 games 1 was completed successfully (that means - opponent does not disappears,game actually starts,when i starts i have opponent and so on) ^^
so don't take to heart,in most cases it really is just a bug xp twisted