I'm running Moodle 3.3.3, and I'm having a strange problem in the gradebook for a class. There are five students in the class whose grades for a few different grade items are hidden. The professor for this class is manually entering grades for each assignment, but upon manual entry, the students' grades are immediately hidden. This class has no overrides or groups set up, and there doesn't seem to be anything special about the five students that this is happening to. Has anyone else had similar problems to this? Any ideas why it might be happening?
Is the instructor accidentally hiding the grades? We had an instructor who was catching the "eye" and accidentally hiding random marks when entering marks manually.