Some apps appear uncontrollable

[gitagogaming]

I am trying to control audio for various applications and notice even though it will appear in the mixer
it appears even though I update the slider it does not change the app volume as expected.
No errors are occurring

There also appears to be a few applications which should be controllable which are not appearing as well.

• OS version: Win 10 pro 21H1
• Python version. 3.9
• pycaw version: Dev Branch

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Side question/Request

i know its not directly related to this magic Session mixer, but i felt like this was the best place to open an issue on this.
BUT, I am curious if it would be possible to get a callback when a default device has been changed? Lets say "something" changes the default output device, i'd like to get an event for it.