I am trying to build a report that shows only students who have acheieved a final score of at least 80.  When I enter it and hit save the report comes up blank.  When I go back into the details of the report it shows the score erased and displayed as a date not a number.  Below is a screenshot after I have gone back in to edit the report showing the date in the number field. 

Another problem I ran across when I tried to find a work around was to remove the filter and I would filter it in excel after I downloaded the report.  The problem is that Final Score doesn't even appear on the report.  The Field is there, but it is blank for all entries.  I doublechecked the course and the final score is filled in there.