Hi Claus,
I have updated pulseaudio to the latest version.
There are some other libs which has a USB name on it included in libasound2-plugins package, i don't know if it's needed or not.
I assume the microphone issue can be fixed using pavucontrol.
Or as you mentioned by adding the needed settings manually.
I will google it later, many thanks for the pulseaudio fixed package
Best regards.