When I look at Grade Exceptions these students do no show up under the "Include in Grading" column. But the also do not show up in the "Exclude from Grading" column. I am at a loss as why this is happening. Anyone have a clue of what I need to look for or how to fix this problem?
Have you tried deleting the affected students and then uploading them again. We had something similar and this worked. This is assuming you are not storing your students in another application and linking to Moodle. In that case it may solve the problem by deleting them and uploading them from that application.
You may however lose some of the students links to grades by doing this, though not necessarilly.
Mike McDermott (with an exta t)