Local files not downloading on iphone but do on Samsung

[coldbobt]

I'm on Spotify Preimum, I've got a Samsung S8 and an iPhone SE (I use the iphone to play offline in the car).

With both devices connected to my home network I can download local files onto the samsung, but although the iphone can see the files in the playlist is refuses to download them.

They're obviously available becase the Samsung can get them... why would the iphone not be able to?

I've logged in and out on the iphone to see if I can kick it into life, but that doesn't work...