Can we get some context? What are you looking at / reading?
Howard Miller
مطالب مطرح شده توسط Howard Miller
Where is says "Enrolled users" in bold type, towards the top left of your screen shot, note the little down arrow next to it. You'd be forgiven for missing it - not great UX at all. Click that and select "Check permissions".
"In your course, go to Participants and then change the dropdown at the top-left to 'Check permissions'. Pick a user who you believe can change their own grades (and should not) and check whether or not they have this capability. We can go from there."
I didn't ask you if something worked or not... I asked you to check a user's permissions in a course to see if they have that capability or not.
It's unlikely to be a bug as nobody else is reporting it.
It's unlikely to be a bug as nobody else is reporting it.