CB Privacy

Recently I wrote:
"I now note that the privacy config is correct in the backend but that it only appears partially in the frontend (only the public option is available)
What would be my mistake?"
and you answered:
"You've turned off privacy rules within CB Privacy > Parameters > Privacy > Rules."
I have been looking for the origin for several days and I completely reorganized the groups and the access levels and the result is always the same
In the backend:
CB Privacy> Parameters> Privacy> Rules: the rule is activated (capture 1)
CB Privacy> Parameters> Privacy> Display: the rule is available (capture 2)
CB Privacy> CB Privacy> Rules> Processing: the rule is available (capture 4)
CB autoactions> system actions> CB privacy> CB Gallery: edit, save & authorized rules published
Frontend> Gallery> edit a photo: the rule is not displayed (capture 3)
Can you check if a bug has not appeared ? (remember this was the case for the double escape when editing photos) or if the problem comes from my config
Thank you so much.

Seams to be working fine in my tests. In your screenshot the optgroup label is also there. Switch to default Joomla protostar template, clear Joomla cache, and see if issue persists. If using a custom CB template switch to default within CB > Configuration > User Profile as well and retry. Additionally be sure everything installed is up to date.

Joomla cache cleared, all plugins installed and up to date.
Problem still alive

Did you make a copy of the "CB Gallery - Privacy - Edit" system action and change its parameters? By default it should inherit from global params. If you made a copy and changed those parameters that could explain why it's not showing global usage. If you didn't make a copy try navigating to CB Auto Actions > System Actions and clicking Reinstall System Actions then refresh the CB Gallery edit page to see if that resolves it.

Yes previously but the action systems have been reactivated to start with the basics and the copies have been unpublished.
System actions reinstalled now
Problem still alive

I'm baffled why your install is showing such odd issues compared to all our test installs. CB Gallery even with double encoding shouldn't have been a problem and now this. I'm guessing this is a comparison issue in the array check for usergroups, but as to why it's only impacting your site is beyond me. My guess is there is something wrong with your server configuration, but if only impacting frontend makes no sense. Please PM backend super administrator login credentials and will take a look.