Well, that's just how it works here.
If there are not many complaints about something, or people experiencing the same, and Steven can't easily replicate it himself it will understandably go to a low priority.
About your sound issue:
So you have older drivers installed for a Steinberg usb card that you no longer use, as well as newer drivers for your current usb soundcard?
It could be a delicate operation, but I myself would then try to completely remove all audio related drivers and related software, and then clean-install only the most recent and needed ones.