[NOT RECOMENDED!] Plugin and Tweaks Adventures on Buster Betas

RPi 3B running Volumiobuster 3.066
Hifiberry AMP2
wifi from NAS

I’m controlling Volumio with Websocket API from Python using Python socketio library

When playing a track emitting Pause then Play causes the track to start from the beginning again not from where it left off. This is different behaviour from the browser UI which operates as expected. (Note I also saw the same issue with previous install 2.873, websocet API retstarts the track, browser UI starts where it left off)

I ran a simple Python script which did the following sequence:
Emit Play
Wait 20 seconds
Emit Pause
Wait 20 seconds
Emit Play

Logfile is here:
http://logs.volumio.org/volumiobuster/p9et1V3.html

Unrelated issue - mpd logfile contains
exception: Failed to open mixer for ‘alsa’: no such mixer control: PCM