[PROBLEM] Multiroom - No audio when receiver connected to Bluetooth speakers

[Crivit]

Hi,

I've setup multiroom and for the most part everthing works fine. Here's my components:

  - Sender is a Raspberry Pi 3 Model B+
  - Receiver is a Raspberry Pi Zero WH with a JustBoom DAC Zero PHAT

Streaming music tracks from the sender to the receiver whist the receiver is connected line-in to a pair of speakers works. However when the receiver is connected to the speakers via Bluetooth and the sender stream a track there's no audio.

I've disabling the receiver daemon and connected the Pi Zero to the speakers via Bluetooth & successfully played local music tracks so it appears there's not an issue with Bluetooth connectivity.

Read the documentation and this forum, attempted a few configuration changes but nothing appears to work.

Has anyone had success with a similar multiroom/Bluetooth setup. Any advice is appreciated.

Thanks,
David