Haven't played for a while. Early in the game (T30ish on quick) my recently founded second city flipped to a free city. I thought that's odd, I hadn't even noticed it was losing loyalty. I checked back and indeed it hadn't. Full loyalty and rising if only fractionally. Fron that to free city in a turn. No warning. Nothing. Only my capitol and two city states on the island. No other cities visible although the boundry of an empire was just visible at the extent of the fog of war. I know AI cities seem to project hideous loyalty penalties for settling cities which mine never seem to do to the AI in return! When I settled the city there was no loyalty penalty. I had just entered a dark age but that never did that to a city before. Is this a recent change? Flip a city in a turn with no warning or visible means of external influence. Anyay I just quit the game. Playing on deity, quick speed, archipelago, small map.