Failure to Sync Songs?

[mittensfrancis]

So I never really had an issue syncing songs on my phone, only if the file was missing, which is fairly obvious. However, back in July my phone was stolen so I had to sync the songs to a different phone (it may be worth noting that I got the stolen phone back). However, ever since I synced it to the other phone, random local tracks just will not sync at all, regardless of whether or not I have the file, which is pretty frustrating. Song name is grayed out and I get the standard "Song Not Synced, if you own the song you cna sync it from your computer" message whenever I try to play it.

Anyone know whats causing this?

[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.