I'm having a weird issue and wonder if it's happening to anyone else. I know how to sync local files to my phone through Spotify and how to ensure I can listen to them offline -- been doing it for years. After the last iPhone update, Spotify now only allows some of these local files to sync and there appears to be no rhyme or reason for it.

Example: I imported AC/DC's "Back in Black" as a playlist from iTunes, synced it to my phone several months ago. Everything was fine. Now, Spotify will only sync six of the 10 songs (and there is no order to which six are syncing). The other four are grayed out and when I click, Spotify tells me I need to sync them. ??

I have deleted the playlists and created new ones... I have shut down Spotify on both laptop and iphone... I have tried every quirky fix I can think of. Nothing is working. Firewall is off -- and besides, some of the songs ARE syncing so I know that's not the issue. I am nowhere near the 3,333 offline sync song limit. As I said previously, this playlist was working fine before the last Spotify app update.

Anyone else having a similar problem? This is driving me nuts because I use Spotify when I teach spinning... and when songs randomly disappear/unsync in rides I've created, it causes problems during my classes.