Here is another thing alsactl store does not fix that it helps
. here what is going on ok. very to simple you log made some changes reboot the kde says hey this stuff you want removed. I wish in the future this goes away. It should really say since you made changes shall we throw the old ones away YES.
then go to setting. set your default devices reboot and it will say it again Why because you made changes. Now the xml part that gets re-written is written.
Let you know if you do not remove them and say NO. then go look at them in settings they are greyed out why. Those settings are no longer used. Why does it say devices. Because those dead settings are link to devices. Why are they greyed out. Would you like to remove them ? YES.