I have an issue with a user's activities in a course: when this given user completes and sends an activity (specifically an assignment or a quiz), teachers can't see it in the gradebook, and thus they can't grade it. But the student still sees the activity as correctly completed.
This user is a student and a teacher in that course at the same time, but it seems that it doesn't matter what role she is using when completing the activity. Moreover, we haven't this problem with users that are teachers and students at the same time before.
For example, if the administrator of my moodle site goes to
(that is, to the grade administrator > user report > report of a given quiz) and clicks the link of an activity that the student says she has completed, the administrator is redirected to
(that is, the overview of all the students that have taken the quiz, instead of the results of this student for this quiz.). If I try that with another user that has also taken the quiz, I get redirected too, but to the current attempt of the quiz, which I guess is the correct behavior:
We not only have been sent screenshots of the finished activities of the student, but have traced the proccess step by step by her side while completing an activity, and all seems normal. We are totally puzzled and don't know what else to try. Any suggestions?