What the?

[Gwynnja]

Turn 51, city size 5, 1 unhappy citizen. Turn 52, city size 4? what gives?

 

[Dresden]

The city is starving (needs 10 food to support 5 population and only working enough tiles for 9 food) and has nothing left in storage. So you need to switch the tiles worked to get enough food or you'll lose population.

 

[Gwynnja]

wow. i'm dumb. thanks dresden, can't belive i didn't see that