After reboot persistent Alsa error

[deepblue897]

Version

2.9.0-alpha - 4816b1f - develop

Branch

develop

OS

Raspbian GNU/Linux 12 (bookworm)

Pi model

Pi 4

Hardware

No response

What happened?

System was running fine (music plays, GPIO buttons worked) and then I enabled an additional GPIO pin.
After reboot no music could be played any more.

mpd throws errors about ALSA device.
Feb 01 18:07:02 phoniebox mpd[737]: exception: Failed to open "My ALSA Device" (alsa); Failed to open ALSA device "default": Unknown error 524
Feb 01 18:07:02 phoniebox mpd[737]: exception: Failed to open "My ALSA Device" (alsa); Failed to open ALSA device "default": Unknown error 524

After restoring the settings in the gpio config (replace entire file by backup copy) & reboot the error persists

Logs

log.txt

Configuration

No response

More info

No response