On my latest game, the tree farm doesn´t work correctly. I´ve planted all three types of trees.
At the beginning of the year, the peach trees began to bear fruit in a good amount. When the worker wanted to start harvesting, all the fruit stocks on the peach trees went to zero. Only 1 - 3 apples were still harvested on the other trees. Some of the pears bore 1 - 2 fruits and were completely ignored.
In addition, the stock display of the building is also not correct. It showed a value of 715 / 750 - although nothing was stored.
After I rebuild the fruit farm there was 9xx / 1500. The harvesting behavior remained the same.
With my partner, the plantation works perfectly. He has built it on level ground.
My plantation, however, is on a mountain, I do not know if this could play a role.
I think this might be the problem. I have another farm now, which works alright. But I could reproduce it on the old spot. They simply ignore the harvest, even if some trees bear fruit or harvest very few. What amazes me is that the guard from the tower on the left of the picture, has harvested several of the trees to bring food to the tower in the first saison. If such mountainsides are a problem, it is a relevant mistake in my eyes. Maybe other players observe something similar.