First rule of security rules is do not change a rule that comes with the software. Instead make a custom rule and disable the original one. Name your rule the same but put a prefix in front of the name like -Custom- for example.
You can also create tags and put that on your custom rules to make them easier to find later.
That way you can always go back to the original.
It sounds like the changes you made to the rule were replaced with the standard rule when you upgraded. But not sure. Never paid much attention to that.
I do have custom rules and have disabled the original rule.
As Chris mentioned, the "Create New Sheet" option displays and allows the user to create a new sheet. But then the new sheet disappears.
Its almost like the front end is not honoring the security rules and allowing creation of a sheet but the backend seems to be honoring the rules and does not save the sheet, because it disappears in a few moments.
Hi all ! Hi Mark !
I understand and knows your warning. I didn't explain that It's on a test environment, so I allow me to modify directly .
And also, I check the security rules before and after the upgrade. They are the same.
Understanding the security rules is really not an easy things to do . I understand some new things and try to check if it's a real issue or the result of others security rules. Whitout succes now.