I'm having the same issue! Except for me, _nothing_ is being produced - it's not just food. They have all resources necessary, I can see them actively working in the blacksmith and the bakery and so on, but the little progress bar never moves. What's going on?!

I am having this problem on the regular difficulty. I keep building farms and fisheries, but my people are starving and dying. I think there is something wrong with how the production is calculated for all the buildings and not just the food ones.

Getting really annoyed by this.
its my 3rd attempt at Cruel difficulty now.
One moment everything's fine, im up 200 food with surplus supply, the next for no reason, no increase in population, nobody being moved from food production..... and my food counters stop going up and also stop dropping, then all at once my population starves to death,
All food facility's stop producing even with population, farmers in the fields are in their harvesting animation but are not moving, just endlessly trying to harvest one tile, fishing bots stay trying to harvest one fishing spot and not one of the facility's produce food.

Please fix this bug, its pretty seriously game breaking, especially egregious in a 1.0 release of a game.

*Edit* I just double checked thinking maybe a reload would fix it. It did not, and turns out as reported by others in this post, its not just food but every recourse and production facility.
Like the AI managing resources stalled out of existence on the save rendering it totally broken.
This is the 3rd game i have had this happen in now, all on the higher difficulty settings.
The only game where its not happened is on the easiest difficulty.

Same issue here, sawmill shows them producing planks but the planks never get added to the full total of my fabledoms inventory. Seems like a huge bug and I can't progress without it.