I have an instructor who has two sections of the same course, section 23 and section 26.  Section 26 was created by copying section 23 when it was finished and ready to be published.  Both sections are exactly the same.  In section 23, unsubmitted assignments are showing up as a zero in the grade book. In section 26, unsubmitted assignments are showing up a a dash, or blank, in the grade book.  All of the grade book settings are identical, status, grade posting policies, etc.  The assignments are the same, each has a From and Until date along with a due date - these dates are both the same.  I cannot figure out why one is showing as a zero and the other as a blank.

Thank you.