AI Gets Stuck (City Improvements)
This has happened a couple of times to me while playing single player. The AI gets stuck "thinking".
I think I know what might be happening.
In both cases the offending AI had commodities but had no cities (due to destruction).
I think that the AI is trying to unlock a city improvement by trading in their commodities, but this is not allowed by the game since they have no cities. The AI doesn't realize this and thus gets stuck trying to redeem their commodities.
Can you please look into this and confirm if this is the issue?
This is a really annoying bug as it halts the game with no way to recover. Restarting the game does not help.
Note that Vincent is stuck thinking and has no cities.