Sound stops working after Audacity Reduce Background Noise

To reproduce:

  1. Open an Audacity project
  2. Create a new track (I dragged an mp3 into the project)
  3. Reduce background noise on the track (Effect → Special → Vocal Reduction & Isolation)
    A. Use default options / Confirm
  4. The computer’s built-in sound stops working (across all apps)

This has been difficult because it’s required a system restart for the sound to turn on.

MacOS 12.0.1
Audacity 3.2.5

I am unable to duplicate your issue with Audacity 3.2.5 on Windows 10.