UR824 Windows 10 x64 1803 microphone input

This is really getting frustrating. So is there anyone who can help out with this issue?
So far I was able to get it to work by enabling microphone access in Windows 10 under Settings → Privacy → Microphone.
But it stopped working after a few day.

So to recap again:

  1. The audio input / output works in Cubase, Standalone VST etc.
  2. Monitoring works.
  3. No app for chat/voice/messaging can access the microphone (Skype, Discord, Facebook).

Any help would be appreciated.