Volumio on cubietruck casting not working (bubleupnp)

I’m having a weird problem with my volumio install on cubietruck. The cubietruck is connected to my home network via WiFi. EVerything seems to work just as planned, local mp3 and flac playback, webradio stations and even playing something from my subsonic DLNA server.

The only thing that doesn’t work at all is trying to cast the audio from my android via bubbleupnp. It works with another volumio install on a raspberry pi, no problems, but not on my cubietruck.

if you guys need some log output i’m happy to provide.

thx in advance.