Express 4K+ newly bought shows blank content can only see menu
I have LG 55UH615A which according to specs has all 3 HDCP 2.2 ports. After setting up Roku Express 4K+, it could not detect display type. I set it to Auto detect and individually selected all from 4K to 720 P but none of these works. I can see menu for channels and menu inside channels like Fox, Peacock etc but when I play any content I only get audio. TV screen is blank and doesn't display any video content. Tried many channels and restarted Roku but no luck. I will need to return this if it doesn't work.