Using moodle 2.3.2 (2012062502.00).
A student has taken a quiz, there is a record of an attempt which was successfully finished;
Yet in user report on that student the quiz is shown having no mark (as if not taken);
User grade report: (/course/user.php?mode=grade&id=XYZ&user=XYZ):
And when clicked on link that leads to attempt review: (/mod/quiz/grade.php?id=XYZ&itemnumber=0&userid=XYZ that redirects to /mod/quiz/review.php?attempt=XYZ)
What can be the reason ?