Two craft flying in formation with invisible abilities

I was on the passenger side of our car and looked up in the southern sky at what appeared to be two craft flying side by side high up in the sky. The craft on the right seemed to have issues with appearing and disappearing. Clearly it had the ability to become invisible. The craft on the left never disappeared at all. After the left side craft finally became visible again they both vanished very quickly. I don't know if they became both invisible or just sped off without a trace .It was overwhelming. I Googled Texas UFO sightings and came up with a website by that actual name. There was a testimonial from a husband who saw the exact same two craft behaving the exact same way while he observed from the passenger side of his vehicle while traveling northward in Dallas, Texas. These craft are around and the problem seems to be that they can't be seen if they don't want to.