This is almost certainly what Reich saw in both Maine and Arizona and mistook for UFOs.
The lights he saw were probably caused by the excitation of the preparations for nuclear tests in Nevada, and in some cases, by the excitation of his own cloudbuster and orur. He failed to make the connection with the similar lumination he had seen in his VACOR tubes because he was influenced by the culture of his times, at a time when large numbers of people, seeing the lights caused by nuclear weapons testing, were reporting UFOs.
Some delusional individuals, or publicity seekers with an ax to grind, claimed to have had close personal contact with space visitors. Reich accepted those fictional reports without any critical thinking. It apparently never occured to him that these people could be lying or imagining things.
Then, based on the DOR associated with the sightings,. he went a step farther and came to believe the UFOs were hostile and attacking eareth. And since he could see how the cloudbuster affected them, he believed he was fighting an interplanetary war against the invasion forces.
And to this day, many people who are incapable of thinking for themselves and need Reich to do their thinking for them, still belive this scenario and include the fictional UFOs from other planets in the field of "orgonomy· on no other evidence except that Reich said so.