: On macOS, if you manually edit the settings.json , ensure you have read/write permissions for the /Users/Shared/reFX folder to avoid saving errors.
Ensure the folder is named exactly Nexus Content (case-sensitive). update nexus library location
Example: "library folder": "/Volumes/YourExternalDrive/Nexus Library" the file and close it. Reopen your DAW. Crucial Tips & Troubleshooting : On macOS, if you manually edit the settings