Bought a 13 & # 39; MacBook Pro (4 Thunderbolt ports, May) about two months ago. For two days, a static band has sometimes been "flickering" at about the same spot on the screen. The flickering happens for about 1/4 of a second, so it is very difficult to catch . I've spotted how it looks, see here: https://i.imgur.com/Vk7Rgq6.jpg
I did update to Mojave Beta 10.14.6 at about the same time. I find it hard to believe that a 2 month old machine has a screen defect, and no, it never strikes, and there were never any emissions.