I have now two reports from professors about missing grades for their activities. For the record, we are using version 3.1. In both cases, quiz grades are missing from the Gradebook. We've double-checked the settings and the only difference we can find is that the missing quizzes do not have a category and there seems to be no way of adding them because the category field is missing from the activity setup. Please see images below.
This is a screenshot of a course missing 3 quizzes out of the nine he created.
This is a screenshot of a Quiz setting that has the category field in its settings.
This is a screenshot of a Quiz setting that is missing the category field in its settings.
I am very much open to ideas on how to resolve this issue. Thanks!