Apple TV2 - Airplay 2 not casting to MuSo

Whilst my Apple TV2 (4k) sees my MuSo, when i set the audio to stream to the MuSo, it stops streaming (Disconnects). I can reconnect, but the same thing happens.

Any ideas on a solutions please?

thanks in advance
Rob

What format are you sending? The musos can only handle stereo pcm.

Perfect. Changed to stereo ( was Dolby). Fixed issue, thank you!