So I copied a farmhouse, Rorik's manor to be specific. I did this earlier in the production, and deleted the copy.

I later created a farmhouse near Windhelm that has my NPC in it, however the quest marker when it tells you to visit said NPC goes to Rorik's Manor in Rorikstead. I checked the doors and they are linked to their respective locations properly.

I really have no idea why it's pointed to Rorik's Manor, since this NPC was never even in that building...

Is this something I can do to fix the location of the quest marker, or knowledge someone might have of what link is broken here?