Hi,
This particular setting is stored in the system settings, and it should not be scene dependant. I'm not sure how this is managing to get overwritten and saved in the scene.
Are you, by chance sharing some system settings between systems?
Could you try to delete this file, Corona will create a new one with defaults on the next 3ds max launch. Maybe this will fix the issue.
The path where the file is saved is here "C:\Users\USERNAME\AppData\Local\Autodesk\3dsMax\2023 - 64bit\ENU\en-US\plugcfg\corona\SystemSettings-XXXXXXX.conf"
Cheers,
Rowan