We're using Moodle 2.6.2, and I seem to be unable to set a user as a site administrator, even when logged in with the main admin account. In the
- / ► Site administration
- / ► Users
- / ► Permissions
- / ► Site administrators
screen, I select the user I want to add as a site administrator, then click on the "Add" button. The confirmation screen comes up and I click on "Continue". But then when it returns to the site administrator screen, the user I selected has not been added.
This seems to be true of all user accounts that I try to add as a site administrator, not just one particular user.
I've purged all caches, just for fun. No good. I've also turned on full debugging, but no error messages are showing up at any step.
Any help, suggestions, cryptic ramblings, would be much appreciated.