I had trouble with alexa not finding my playlists on amazon music. I would say “play [name] playlist on amazon music”. Alexa would hear correctly but play a random playlist instead of my playlist. After a call to amazon customer service, who were fantastic i have to say, they fixed the problem. I need to say “play my [name] playlist”.
I can see this is going to get difficult to say everything just the way alexa wants to hear it...looking forward to some alexa learning!