You may be familiar with this video.
"They're all going against the wind. The wind's are 120 knots out of the WEST."
Many fools believed this video, especially after the media started spreading it so actively, without anyone trying to analyze it. Because the analysis is extremely simple. It consists in taking a number, so called 'sensor azimuth'. Briefly, this number indicates the angle of the infrared camera relative to aircraft axis. And to notice a statement from the pilot where he mentions the west direction.
So you add 2 and 2 and you get 4. The movement of the plane creates the illusion of the movement of the sun. To call sunset 'UFO' you must either be a complete idiot or a complete crook. For these two pilots, I have no idea what type they are. Question is: Why do you have to believe such a shallow lie?!