Yes!
ran into this issue myself.
It actually seems to read it as a different quest...?
So, I am to give 14 bushels of grain.
I return and talk to him about the given quest.
the NPC’s reply is: “have you tracked down those looters?”
Well, you asked for grain, not looters...
Which is why we cannot turn in grain to finish the quest.
on top of that, the game seizes as the dialogue freezes.The game is still running and people moving, but I cannot exit dialogue. Had to quit and reload.