Can't play audio via Bluetooth headphones

My sys-audio template is audio-app which is derived from a separate template audio-template. The process I followed is this one

Haven’t seen any policy error notifications. When I check in dom0 terminal, journalctl -f doesn’t show me anything related to that.

Output of the command:

[user@sys-audio ~]$ ps aux | grep qvm-start-daemon
user         889  0.0  0.6  33960 25884 ?        S    13:31   0:00 /usr/bin/python3 /usr/bin/qvm-start-daemon --all --watch
user       12036  0.0  0.0   3856  2048 pts/0    S+   15:24   0:00 grep --color=auto qvm-start-daemon