Hello. Had this issue arise in my first settlement. The hunter cabin you see below has the barrel icon indicating that it’s “full”, but as you can see from the screenshot below it, it’s not what I would consider full. I’m not sure how it got into this state, but I have a feeling that the “Gathering Animal Traps” AI action by hunters played a role here. I can’t prove that, only vaguely recall what I’ve seen them do.
Anyway, once the cabin got into this state, the AI will frequently get into a state where it bounces between Transferring Produced Items, and Idle. If you watch the hunter, its AI task will flicker between the two, even while the game is paused, as if the AI can’t make up its mind. Furthermore, this state will persist until you do one thing: click on the hunter cabin, at which point the AI will jumpstart into a different task.
I’m not able to upload the save files here, because they’re too large (the .sav and .map files zipped up to be 45mb or so and the forum doesn’t like that). My email is being weird about attachments so I’m not sure how to get that to you guys for analysis right now, I’m afraid. All I’ve got right now is speculation that animal traps are the cause, because I have observed hunters seemingly dropping them off at hunter cabins, but they don’t seem to properly enter into the cabin’s storage as they do when produced (from the slider being active). The fact that, in the attached screenshots, the cabin says it’s “full” is why I suspect traps are the cause of this issue.
EDIT - Played a bit with the hunter cabin settings. When a hunter cabin with traps set had its slider set to zero, the hunter would go collect them (one at a time…) and then take them to the cabin. The cabin would not show that the traps were put into storage. Eventually, the cabin would reach this ‘full’ state and the AI would then freak out. So yeah, I’m ascribing this to hunter traps behaving oddly with respect to a cabin’s storage.