All the selections on the left side of the screen are missing. Selections like "featured", "new", "most popular" and search channels are gone. When I use the search engine, which is buried in the screen, the response is always streaming shows but never any channels. When I first installed my Roku, all I had to do was select the box that said "add channel" from the main Roku menu and then I would search for a channel name. It was that easy. This occurs on all five of my Roku devices.
I did a factory reset which did absolutely nothing. I believe it's time to purchase a Fire Stick.