AT2020 detected but no audio

Audacity and Mac system preferences both recognize the AT2020 mic (XLR to USB) but mic not working, not picking up sound.

thoughts?

Have you given Audacity permission to use the microphone? (See: https://forum.audacityteam.org/t/no-signal-from-usb-turntable-mojave-solved/50763/6)

Are you seeing a signal in Audacity’s recording meter when you speak into the mic?