I have three of the new Echo devices in my home. Working fine for a week or so. Then over the past few days, all three of them have had problems playing music from Amazon Music. The music continually stops and then restarts. The problem occurs only when I stream Amazon Music. If I play anything from TuneIn or iHeartRadio or Pandora, the music plays fine. So I'm assuming the problem is on Amazon's end. Has anyone else had trouble like this recently? Thank you.