I’m seeing a similar issue in r450.
Hearthlings are complaining of lack of food, but appear to be stuck in the dining hall walking around in circles with food in hand. Food is in crates and appears to be accessible without issue. This particular issue occurred at day 25 with 23 hearthlings.
(Link to short video HERE)
This particular video only shows 2 hearthlings stuck but there have been as many as 5 at a time. Issuing Attack or Rally commands will sometimes unstick them but not reliably. In the above video, neither hearthling had any crafting orders queued.