Have this 2017 qled 55 inches model QN55Q7FAMFXZA since October 2017. I see many issues but another issue I see is when I watch any Dark scenes or shows like Better Call Saul, Westworld with camera panning in or out I see what looks like to me Black Rainbow Lines circles. I'm using a TiVo Bolt set to Auto 4k. Also with Samsung tv I have Dimming set to Low. Is this Black Rainbows normal?