Autogame has a failed sanity check about Helicopter being sentried on a tile where it cannot survive (since it's losing hp). So far I've confirmed that at the time it sentried itself, there was a city there. I'm checking further details (how the city disappeared), but the basic bug seems to be that legality of activities of units on the tile are not checked when a city is removed.
Autogame has a failed sanity check about Helicopter being sentried on a tile where it cannot survive (since it's losing hp). So far I've confirmed that at the time it sentried itself, there was a city there. I'm checking further details (how the city disappeared), but the basic bug seems to be that legality of activities of units on the tile are not checked when a city is removed.