not moving to next track when using radio

[daperkins]

Hi,

I'm using a Samsung galaxy note 2014 edition, on Spotify premium  

When I do artist or track radio I keep having to move on to the next track  spotify doesn't do this automatically  

I have no idea why this isn't happening but it's incredibly annoying  

Is there a way to stop this,  or can anybody tell me whe it happens so I can avoid it? 

Many thanks  

dave