Auto refresh rate set to “On Start/Stop” the Screen blinks within 3 to 5 seconds into a video and after 3 to 5 seconds at the stop of the video, are these blinks normal? (even though the actual refresh rate change takes places prior to blink and at stop the refrsh rate reverts back to normal then a blink is observed, does not seem normal to me atleast comparing the behavior with other android boxes)