This is a very complicated issue I've run into. Basically in a playlist I have imported from itunes on my desktop some songs are greyed out on Spotify on my andriod device, while others are greyed out on my desktop. All songs are still playable in the playlist when I'm on my desktop but only the white songs are playable on my phone.

I've attached images showing what this looks like on both my phone and my computer. Basically I'm trying to play a song called "What About Me?" by Snarky Puppy, and can play it on my computer just fine, regardless if it's within the playlist I created locally, or in Spotify's online database. But cannot play it on my phone regardless again of whether I try within the playlist or in Spotify's library itself.