PROBLEM SAMSUNG S95F 55" OLED 4K

Hi everyone, last week I bought a 55" Samsung S95F OLED 4K TV. After using it for a while without making any major changes,when i was watching F1, I started noticing a thin, horizontal white line. It appeared for just a few milliseconds (like a single flash) and then gone away. Sometimes it didn"t happened for a long time, sometimes it happened every 10-20 minutes for a bunch of times, and since today it's started to look more like a glitching withe line and some green thick lines still for milliseconds maby a second but very noticeable... Am I the only one experiencing this? Is it pixel shift? Could it be a software issue? Is it normal/fixable, or do I need to replace the TV?