Yesterday I received a brand-new new RPI4, I flashed latest image on a SD-card to try it with volumio.
Selecting Software Mixer under playback options and Classic interface, the buttons for incrementing/decrementing volume don’t work.
I tried to restore factory settings two times, issue is still there. I can reproduce it with external DAC and with AudioJack output.
If I use the the circle I can set properly any value, the issue is with Vol+/Vol- buttons only.
Previous version has no problem.