We just started a game and are on turn 7. When loading the game up, my 1 population starting city is now population 9. I’ve never seen anything like this after years of playing.
I reverted my turn, and we might keep going back and see if we can resolve it. We’re assuming it got corrupted or somethow?
Anyone see anything like this? We got a big game with 12 players.
It happened in one of my games and I’ve also seen other games in which this happened.
In all the cases, the host player was the affected one.
Was that true in your game, too? By the way, can you please link to the game in which this happened?
That’s correct, I’m the host, and it happened to me.
It’s this game:
We ended up reverting turns. We reverted a couple of turns, and the other player saw that my empire score was still inflated. Then we reverted 6-ish more times, and someone reported my empire score looked good. Then we continued the game, and all is normal now.
Oh, I remember, we chatted about it on PYDT Discord 
For the reference, the other games in which this happened were: