Keeps undownloading songs and play lists

[MikeBaker]

After spending 36 hours downloading 1000+ songs that were previously downloaded, it undownloaded all my saved songs. I will not spend another 36 hours redownloading for a third time. What's the fix?

[ZorkII]

When the same thing happened to me it turned out to a fault on my SD Card.

See this FAQ.

[COMPLETE GUIDE] How to fix most Android issues

The thread documenting my experience.  Summary: I bought a new card and Spotify was happy again.

https://community.spotify.com/t5/Help-Android/Spotify-started-using-ridiculous-amounts-of-background...