[ANNO 1800] Farm shows missing fields although there’s plenty

Problem

My farm shows missing fields although I’ve build the required amount of fields.

Cause

Make sure you don’t build the fields while in blueprint mode. Fields build in this mode are visually very hard to distinguish from the normal ones.

Solution

Click on one of the fields and then click on the Upgrade button to actually build the fields. If the farm itself is also in blueprint mode, the fields will be built automatically if you build the farm itself.