Created radio stations last a few songs only

I wonder who can advise here.

I have tried creating a radio station from an artist and also a song.

Tried customising some with likes and dislikes and left some just run its course

The outcome is the same, and this is regardless or iTunes on a mac or iPhone 6+

you click to start the station, it plays a few songs and then just stops. it requires restarting the radio station but often it will then only last 1-2 song before stopping again.

Also creating the station in the first place can be a challenge as it often doesnt work.

This is the only reason I signed up the Apple music, so that I could discover new bands, quite disappointing.

This is definitely Apples biggest car crash product release to date. 😟

Any help would be greatly appreciated.

Thanks