Two part question:
1) Can I use numbers instead of letters for the grades? We use standards based grading, so 1, 2,3, 4. It seems to work OK in the settings.
2) When I generate a student report and ask it to show both (percent and letter) the report only shows the same Letter (in this case a 1) for every student. On the actual gradebook tab, it is working correctly where students have either a 1, 2, 3 or 4. So the gradebook is working, just not the report.
Here is what I am seeing. In the student report, they all show up as (1) even though it should be 3, 3, 2.
You are absolutely right. You can change letters to grades and it should work. Also, I have just tested what you have suggested and reports worked fine. Can you please check your ranges on the Settings sheet? You can attach screenshots here as well.