No music via Spark

[Gaustabl]

I have been using my phantom (single phantom, no dialog) via optical and have no issusues with this now. Then i thought i should try to play music using Spark. I have a mac mini running Spark, and sharing the library, so In Spark, both at the mac, and on my iphone, or ipad i can choose albums and put in playlist. But nothing happens when trying to play from the apps. I touch the play icon, but playback does not start at all. It just keep shoving the play arrow.

Any suggestions?  I do run the latest Spark, and firware.


Best regards Lars