In my game #52968 vs Arkon7 on Wasserland, I sent a turn that won the game (300+%, victory screen, win registered at Glicko ratings, etc.) but for some reason, according to my email, I recieved a "new turn" on this very game from my opponent after I sent my winning turn! No new turn appears in MA, though. Anyway, I'm confused. Can someone explain what is going on? Why would I get a new turn on a finished game?

if they send a message in-game after the completion of the game then you would get a new turn.

Oh. How do I get this message, then (if possible in the Mac version)? As I mentioned, no new turn appeared in my MA multiplayer list, nor did a message pop up automatically.

I'd agree that it might have something to do with the mac version.

Try openning up the finished game. See if it is there.

"Opening up" a finished game? This doesn't appear to be an option in my Mac version of MA. I can only push one button ("create replay") for finished games.

Well, it is just a message, no big deal.

I've already had the same "prob" : game was over, and I still received one more turn where nothing happened (I mean no message). I'm not sur this is a mac problem as I'm playing with a PC.
My interpretation is that my opponent decided to send me a message first, and then he changed his mind and cancelled the message. I guess that the program didn't "noticed" the cancellation and acted just as a message has been sent. But Im not sure at all of this . Just an idea...