We have this strange bug report that some student grades are hidden and others are not. For example, here in this gradebook for assignments notice that some are dimmed/hidden and others are not.
The current fix that our support staff are doing is clicking on hide for the grade item and then clicking on show. That "fixes" the grades so they are all visible.
But how did the individual grades get hidden? I cannot seem to find a way in the UI to hide individual grades. What conditions can cause some grades to be hidden?