The school I am with is using Moodle 2.8. Over the weekend, someone with admin access (we have 28 users with this access) changed the grade of F to IP. We checked the LOG and cannot find any sign of someone even entering the the Site administration / ► Grades / ► Letters page in Moodle. We have a development site setup and I went into the same page and updated the grade in it from an F to IP. I checked the LIVE LOG and it did not appear at all.
Is this a bug or do I need to enable something in Moodle to track these system events?
Please help! Chris