I have a Roku 3 and before the December update the Roku Media player was playing all of my music files without any problems. However, after the December update, Software version 9.0.0 Build 4084 was installed, it will play one song and then I get the error message: Audio Playback failed. The file contains no video tracks. My files are recorded in FLAC, MP3, WMA. Again, prior to the December updated noted above the RMP played all of my files without any problems.