Search "Field of View" set to 360 or even 720 doesn't detect things behind the AI.

I set my AI Firefly to have a "Field of View" to both 360 and then 720 (just to be extra sure) and regardless, it won't "see" the white character until it randomly turns to face it during its wandering. This video shows it well:

How do I get it to properly respect FoV?
 
If you enable debugging on the task you'll be able to see what is causing it not to find the target. This page explains what the colors mean:

 
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