I am having a problem with a Muso Qb & Muso both 2nd gen. I have tried all methods of Bluetooth permutations with 3 different Bluetooth output devices and all have the same results. They connect for a couple of listening cycles and then they just lock up with no output from any source or from radio presets etc. Very disappointing. I have a very strong feeling that this is a Muso firmware or Naim app issue due to app and units erratic behaviour.
Glad in some respects that there are others experiencing the same issues on this forum.
I have raised a ticket and I will update on any future developments.