In the new S4 film, Bob Lazar says at the test flight Dennis told him to go under the UFO and it disappears, but on a 1996 UFO line episode he said he went nowhere near the craft when flying, and other times he also stated he never went under the craft? Why has the story changed?

In the new S4 documentary, a new story is revealed from Bob Lazar, stating that during the up close UFO test flight, Dennis told him to go under the UFO, and when he did he could no longer see it due to the Gravity light bending properties. In the documentary he says this: "Dennis instructed me to go out and I stopped looked at the craft that was sitting on there and began to lift off the ground silently there was a little hiss from the corona discharge kind of a bluish purplish glow at the b...