After last update screen blinks out to black and back to video on 2 second cycles. Power cycling by unplugging and plugging back in fixes until next time I watch tv. Performing a master reset allows it to work for a day, maybe a day and a half. Then the problem returns. I have tried different hdmi ports and even bought high-end hdmi cords. None of the current solutions in the forum have worked; I’ve tried it all.
I am having the exact same issue and this is frustrating because I just bought the soundbar and speakers a few weeks ago. When watching HBO and Amazon Prime movies, the screen immediately starts blinking in 1-2 second intervals, with no fix. I’ve changed HDMI ports, HDMI cable, hard reset, reboot, advanced audio setting at 4:2 ratio, and turned off the auto-adjust refresh rate. I have a 4k TV, and tnis never happened with the Roku USB stick, just the soundbar. Extremely troubled by this product defect.