Foundry Crashing with Patrol Point

huajia2

So I decided to completely redo one of the maps for my quest. A couple of the NPCs have looping patrols. Since they have dialogue, I was copying them from one map to the other. However, the moment I tried to set the patrol points for the NPC I copied, the foundry crashed. It wasn't a one-time thing either, it's happened three times. Each time it crashed and I had to restart the game.

I can just put the NPC in from my list, and re-enter the dialogue, but that was the step I was trying to avoid.