When listening to online radios and the iPhone locks, the next music always freezes in 10'', no meter how many times I skip a music. All controls in lockscreen doesn't respond and the music-time bar stills counting, requiring me to unlock the iPhone and open Spotify App again (without quitting it before). So, when I open Spotify app, the music instantly starts playing where it stopped (10'').
I've already did a fresh install of Sporify and it didn't fixed.
And yes, I'm a premium user.
iOS 7.1.1 (11D201)