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For those, who like me, have had issues with Windows 'messing' with the USB/audio there is a very interesting article that explains whats going on.
Its called USB soundcards and is in the Data section of RSGB magazine - Feb 2021.
Basically, it explains that every time a USB device is plugged in a 'note' is made This record is added to each time another/same device is plugged in.
This can lead devices not being registered correctly in favour of the 'default' devices.
Hope this is useful.
Regards - Phil (G0DOR)