Since the City Generator doesn't have an "import" function, there's no way to use this trick on old JSON exports (unless you still have the city url, I guess).
Is there a manual fix I could make to the code in the file to get the same results?
I'm playing on a mac. I keep getting a bug that causes the game screen to go entirely blank. I can still hear the music, but all I can see is white. Only solution I've been able to find so far is to reload, which resets the game. Can someone suggest a solution that would let me keep playing? Because otherwise I can't get very far!