A critical bug has been discovered in Pro Tools | First 2020.9 that crashes the software on launch and appears to occur on macOS versions 10.11.6 – 10.15.6.
To resolve this issue, please follow the steps below:
1. Navigate to the Applications folder
2. Delete the Pro Tools | First application
3. Reinstall Pro Tools | First from your MyAvid or Avid Link Account
https://avid.secure.force.com/pkb/ar...rst-20-9-Alert