I noticed that after one of the winters, in one of the locations where I used to gather wild herbs and medicinal roots, they stopped spawning (icons are present, but resources are at 0). However, in several cells, the same herbs spawn without any problems. I will attach a screenshot where I intentionally waited for another year to make sure and turned off the collector in advance to ensure he did not gather these resources.
My savegame:
Herbs not spawning bug.zip (1.2 KB)