You miss nothing, the pathgrid field in spawn2 table is the one linking NPCs and pathgrids. 
You create a: 
- pathgrid (grid table) 
- you add waypoints to that grid (grid_entries ) 
- you have to assign the pathgridID to a specifit NPC in the spawn2 table pathgrid frield. 
 
Make sure the pathgrid field isn't 0. 
		
	
		
		
		
		
		
		
			
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