"FLIR video and by Navy pilots visual"
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FLIR is supposed to detect heat, it's not a photograph. There's just is no photographic evidence for any of the claims. With such a total lack, if the reports were actual, we could just as easily be talking about electronic interference from someone nuking a burrito or a game another pilot is playing on some I-toy or another leaking signals.
If only the DOD could figure out how to mount a camera on an aircraft, it would answer the question pretty dang quick. But apparently that area of extremely rare expertise - putting a camera on a plane - got lost sometime after the Cuban Missile Crisis era.