Headphones
Audio jack+usb aux adapter works for me too! And when I install the Sony Music Center app, my usb headphone (sth 50) is working too, but only within the Sony Music Center app. Not a problem for me.
I'm glad to hear, that the new release fixed your problems
My audio jack headphone is connected via the sony usbc aux adapter, there the music is great.
I would open a bug tracker issue and maybe check if your problem only happens with this USBC sony head phone unit.
Audio jack+usb aux adapter works for me too! And when I install the Sony Music Center app, my usb headphone (sth 50) is working too, but only within the Sony Music Center app. Not a problem for me.