I have updated my Early 2015 13" MacBook Pro to macOS Mojave 10.14.6 last night. After updating my Mac, I see a flicker on my screen a white box appeared on the center of the screen for a second. Then, I watched videos or movies on YouTube/Netflix using Safari, there is a weird flickering on my screen. It just looks like screen brightness goes up and down continuously. Exiting and re-entering to fullscreen fixes the problem. Is there anyone who also experience this issue after updating to macOS Mojave 10.14.6?