This has happened several times already and it just happened again. I just needed to make one more move to finish the game and get the sP, but somehow the way I clicked ended the game without giving my sP. I DID NOT click the end game link. I was clicking on the board. I don't know if I was clicking too fast, but I know my cursor never came close to the actual link. I went to make my last move, and the board "refreshed" and abruptly ended without giving my sP.
It's happened in the past but after a while I never had much issue with it till recently. I try not go to go too fast, but sometimes it still happens no matter what. I think the game might need a revamp...