Game #29721226 resulted when I had won a game (with the same number or a different one, I don't know -- it was gone when the problem arose -- against the same opponents GoGators1983 and XQPN). Instead of giving the usual end game sequence, when I bought the last Province, the game simply restarted with the exact same kingdom. XQPN seems to have wandered off when I appeared to have won and to get out of it we made him resign, but he should not be punished for resigning a 3-player, as the game shouldn't have existed at all. Also, I'd rather like the win I was seemingly robbed of by the erroneous restart if it wasn't credited properly.
user Megas_Droungarios
Thanks for the report, Megas_Droungarios!
That's a really strange behavior. It's the first time I hear about such a thing happening, in either 2 or more player games.