Is there a way to reset the behavior of NPCs? An NPC in my game has been stuck standing in the same location (a location where they shouldn't be) for two (real) weeks now. They're not physically stuck on an object or a piece of world geometry, it just appears that their scripting has broken down while pathing across the landscape, and so all they do is stand at one location and issue generic non-functional greetings when approached.

Anyone have any ideas?

You might try opening the console, clicking the NPC (with the console open, so that it selects it, you'll see a hex number come up) then typing disable (then enter to execute the command) then enable (again, hit enter after to execute). See if that works.

Open the console, click on the NPC, then enter 'Evp'. If its the same as previous BGS titles, that command will force them to Evaluate all packages (The things that tell them where to go, etc), and they should snap back into action.

I had tried that already, but had no success with it. They simply reappear and continue to stand stuck at the same location.

While the console didn't give any sort of error message, nothing occurred with this console command. The NPCs continued to remain at that spot stuck.

In fact, I tried luring them away from that spot using a hostile mob, and after they killed it the broken NPCs turned around and walked back to the point on the landscape they seem to be stuck at.

Any more suggestions to try?