I had this problem too when updating VS 2019 from 16.8.3 to 16.8.4.
After googling I couldn’t find a way to rollback Visual Studio Community to the previous version. However, installer for previous versions of VS Enterprise and VS Professional are available. I downloaded the installer for VS Enterprise version 16.8.3, and used it to install VS Community. And that fixed it for me.
I shouldn’t have updated to 16.8.4 in the first place because the whole team is on 16.8.3. It was a big mistake.