Move to Location or Actor not working

No problem, let’s keep identifying the issue for you. So first up, we’ll look to the AI controller. Are you running this logic in the AI controller? Because if not there’s no path finder for it to determine it’s path. My AI controller looks like this (I chose a random location it can make it to so I didn’t have to write up the random locs):

Second, let’s make sure your boss is being possessed by the AI controller, and the correct one at that. This is the autopossess AI and the controller class it selects in the details of the boss actor:
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Third, I notice you’re doing this on EventTick. Try to only do one at a time starting with begin play, then a delay between to give the actor time to make it to it’s target. If this fired every tick you’d never move because the constant changing of the target every frame.

Fourth, our movement component type matters. Are you using a character movement component, here’s some relevant settings:
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