Question: looking for UFO Type.

Question: looking for UFO Type.
Time: about 8:20 PM
Location: Düsseldorf, Germany

I am sure I have seen something extraordinary, but it does not fit any ufo description I have seen on the internet so far. It was two parallel lights, no sound, quite fast and moving in zic zac, but most astonishingly was that in betweem the two lights it looked like there was some sort of cloaking going on to disguise the body of the aircraft. It looked like there was nothing in between the two lights moving in parallel, but actually there was some sort of distortion of reflection going on, similar to heat reflections over the asphalt in summer. Has anyone seen something similar yet? I could not find any clues online