When I use Pandora via my Echo Show 5, each song repeats once. It doesn't happen with Alexa by itself, only when using Echo, or so I thought. I've think what is happening is both the Alexa app and Echo are trying to control the speakers, so one is repeating the other. I remedied the problem (touch wood) by saying, "Alexa, stop," which stopped all music. I changed the wake word on Echo from Alexa to Echo, so that the Alexa App and Echo don't both respond when I command one. I restarted Pandora using Echo, and now playback is back to only once per song. I've seen two threads about this. Both have been closed for comments, but Sonos indicated they'd look into the problem and then update the thread/s. That was a year ago and, from what I can tell, no solution was ever posted. I'm not sure if my discovery is a permanent fix, or a fix at all for that matter, but I thought it might give users somewhere to start and Sonos some idea as to what to investigate.