[PROBLEM] Bluetooth Audio output (Transmitter)

[IriDium]

I've had the same issue. The connection failure seems to have gone with the permissions, but sometimes, there is - as you say = no sound (Even though you can hear the clicks when connecting).

I'm not too sure if multiple instances makes any difference but you can try.

Terminal

$ killall pulseaudio

It will respawn

I think, the multiple instances are caused if Kodi is restarted (It doesn't kill the original one, so just starts another)