After a lot of suffering clicking the hotkey in everyway possible (p-linking the activation hotkey with the perception hotkey), I figured it out!!
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You need to verify if your hotkey is working. Pressing it, the debugger should be toggled on the screen.
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You need to verify if the selected debug actor is the desired AI pawn. If it is not AI it doesn’t draw the debug shapes.
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When you hold the hotkey, the code will select the pawn that is closest and most centered on the camera view. Those two settings, distance and angle are configurable and you can find them on Editor Preferences → Advanced → Gameplay Debugger.
For my team the problem was we use an orthographic camera and what we see is completely different than what the debugger was considering as it’s view. Our fix was to set the max view angle to 90°.
WE DEBUGGED THE DEBUGGER. 
