It's been happening for a while and I heard it happens to other people as well. I usually play music over night on my Amazon Alexa but for the past month or longer it's randomly stopped playing and it isn't my playlist running out it's 14 hours long and I don't even sleep more than 7 hours a night. I tried playing it with my phone doing nothing in case my sleep alarm app could mess with the Alexa and my music only played 11 songs and I had to restart my music after the first 4 and a half songs, Last night I tried again but on my phone and it played 57 songs it's better but the amount of songs change every night anyways. It's super annoying and I'm not sure what to do I just want my music.