Linked tracks won't play on iPhone 5S

[Doelie]

Hi all, hope you can help me define this problem.

First of all, I am not using any local files via Spotify. All the boxes that has anything to do with this are unchecked.

The problem is that I have some linked tracks (awesome feature!) in my Spotify libary, that can be played on my Mac and iPad. However they don't appear on my iPhone 5S.

When I uncheck the "Hide hidden tracks" slide, I can see the tracks beeing greyed out on the iPhone.

Can someone explain me why I can play them on my Mac and iPad, but not on my iPhone 5S?

Mac: 407 tracks

iPad 405 tracks

iPhone: 388 tracks

Playlist link: Hiphop .. How many tracks do you see?

Side problem: How come this playlist takes up 4,8 GB on the iPad in offline mode and only 1,1 GB on the iPhone.. Both in the same quality (extreme)

[Peter__]

Not sure what is going on here, I can see 412 tracks in that playlist.

[Doelie]

Thank you for the reply!

With the hidden tracks included all the devices show 412 song in the playlist. 

How come some songs will play on my Mac, but wont play on my iPhone? Why is there a difference? 

Is there a moderator that can help?

[Peter__]

Wondering are any of the missing tracks on the iPhone local files which would need to be synced to your device from your Mac? 

https://support.spotify.com/learn-more/faq/#!/article/Sync-your-device-with-Spotify

[Doelie]

I reinstalled the Spotify app on my iPhone and synced it with my macbook.

Mac says "Pending" on the playlist and the iPhone says 387 out of 412 song are synced for offline use. There is not any movement 

[Peter__]

Does your iPhone have at least 1GB of free storage (and you haven't already synced more than 3,333 tracks)?

[Doelie]

Yes and No. Should I maybe reset my devices linked to spotify?

[Peter__]

Its worth a shot (offline reset topic) if you don't mind resynching your offline playlists.