Seems like it might be a file permission problem in your OS settings.
Sorry I know nothing about Mac OS.
The work environment in use will be saved in a preference file in your user account.
Seems to me like you don't have the necessary permissions to change this file.
Barry.
One of the forum moderators.
Versions 6.5 to 27
i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11