[PROBLEM] Bluetooth Audio output (Transmitter)

[Nachteule]

This is all really quite strange.

In my development system (but only there) it also happens very rarely that Kodi crashes at startup with segfault and restarts when a BT connect is performed via the userrun script. But since this happens with Kodi 20 Alpha and Debian Bullseye and Kodi also otherwise sporadically crashes at startup I'm not worried yet.

Anyway, with Kodi 19 and Debian Buster the BD connect via the userrun script always works without Kodi crashing, and the output to the BT speakers is also always given, although pulseaudio is always started automatically only after the start of Kodi. Tested with all Raspberry Pi's available to me (Pi3, Pi3B+, Pi4).

This weekend I modified the BT start scripts again, because I obviously had some errors in thinking how the thing should work. But this has nothing to do with your general problem.