Only certain local files refuse to sync!

[brandonm]

Earlier this week I noticed that Spotify stopped syncing certain local files onto my iOS app.

A good chunk of my local files are grayed out. I have the file on my desktop version, but no matter what I try I can't play them on iOS (it just tells me if I have the local file on my computer I can sync it). In some cases, some of the songs from the same album will be available while the others are not.  I have a iPhone 5S syncing from Macbook Air.

Never had this problem until about a few weeks ago.

[MattSuda]

There is a current bug that causes any local files with (parenthesis, commas, dashes, etc.) to be unsynced randomly, usually after an update comes out for the iOS app. The developers are currently investigating this bug. 

It is likely that when you updated to one of the recent Spotify updates to the iOS app, the local files became unsycned due to this bug.

Hopefully it will be fixed soon.