I designated a task to move this gravestone into my base (footman had run out of walls to attack four goblins by himself and putting the base on “rally” did not cause villagers or other footman to come to his aid, but that would be a different bug report).
This is how I saw a worker. He is stuck and should have no reason to be carrying what he is.
Further, save and reload caused the Stonehearth Assertion Fail dialog with the word “id”, goodbye brave citizens of Flowerton. I will miss you.