I usually use my wireless earbuds to listen to music on my S20+ but I decided to give the AKG headphones a try. The only player that actually works through those headphones is Neutron Player. Amazon Music doesn't work, Samsung Music doesn't work Poweramp doesn't work. Does anyone have any ideas?
are you using 3rd party launcher by any chance? or are you using stock, OneUI?
Can you try to boot in safe mode to see if you are experiencing the issue? if it works fine in safe mode, it could mean that one of the app is causing this issue. In such case, try using Nice Catch to see if anything is misbehaving or simply track what each thing is doing.
Lastly, you can submit an error report to Samsung Members app after recreating the issue. The techs and samsung may be able to help figure out the cause.
One more thing, please share what version of sw the device is on and what the device's model number is if you don't mind. thanks