I have the same issue,
I have an MSI motherboard and after the last update, my Realtek microphone is detected by the system also detected by Realtek audio console but not recording anything
I've tried everything but the mic won't work
As long as I researched about that ....I found 2 ways......either you can go to the previous version (1909) of win 10 or wait until the latest update (20H2) comes .....In the next update this problem will be fixed.
Yes I think so! I'll wait until the next update and I'll just buy a new USB microphone for now