Yes, this has been a problem with lots of players, it seems: you win a game, and the game continues anyways. I had one game that took a few minutes to realize i'd won, but did eventually. All we can do is hope Fencer does something about it :-)
(hide) If you are waiting for your turn, click on "change" next to the "refresh" on the main page, then set refresh the page to 30 seconds to get your turn to move displayed faster. (Servant) (show all tips)