Flex Xi6-T Box Displaying Frequent Black Home Screen

When turning on my TV from the Xfinity or TV remote, my screen is displaying black from the Flex box. This is happening frequently. I do not see the Flex main menu as expected. Pressing the home button, or other buttons on the Xfinity remote does nothing. However, if I press the voice button on the Xfinity remote, I can see the "Listening" icon on screen and can launch apps by saying open Tubi etc. If I exit an app, it goes back to a black home screen. If I press the home button on the remote while in an app nothing happens. It does not go back to the home screen as I would expect.

I briefly noticed a message onscreen once before it went black, something about we are having connection problems. It's as if the home screen is crashing. Only way to fix is to unplug the Flex box and plug back in, or use the voice command "restart box." Does this box need to be reset, a firmware update or replaced?