I added a couple warps between maps, and now NPCs are taking strange routes to places. for example, I added a warp between the far west of the beach and the path next to Leah's yard. Now I witness NPCs like Leah, Shane, Penny with the kids going to the beach and then to the forest instead of going via the lower town exit to the forest. Elliot will go west to the forest, then up to the bus stop then into town to get to the library! I tried putting in the "NPCBarrier" T property on tiles across the warp, but it's not stopping the issue.