I recently installed the Emby server on my Windows 7 PC and have set up a Music library under which I have placed my audio book folders (all MP3 Audio files within their own folders). I use a Roku 2 to access Emby via the app from the Roku store.
I can access and play the audio via the Roku, but when I do press play the background flickers between black, a rainbow color, and transitions between some combination of the two. All media on the screen appears and disappears, including but not limited to: buttons for Play and Stop, all images, and the entire Now Playing section at the bottom. When I back out of the Music library the images at my Home Screen continue to appear and disappear, and the background continues its psychedelic dance.
My Windows 7 doesn't have this problem. Is this a known bug or did I set up my audio books incorrectly?