I don't know whether anyone has encountered this problem, but there is a post on the Multitrackstudio forum which states:

"A recent Windows 10 update introduced some privacy changes which may keep you from recording audio. To fix this go to Start > Settings > Privacy, and make sure the 'allow apps access to your microphone' setting is switch switched on.

This setting seems to affect all audio input devices, not just built-in microphones."


Chris