Duplicate the MainBlueprint character for the template ur using…
remove the movement logic so its blank or as i did just disable the player input nodes
Add a navmesh bounds to the world and use P to show it as green or not
Use the blueprint below
place that in the AIPlayer… and make sure its using AIController (details)
also add PAWN Sensing to the Left as a component
look at that in the Viewport of the AI and tweak to your liking
Should work when you run thru the vision arch in the pawn sensing options
Lemme know what template ur using and i can work better