Generating registration reports

Every month, I generate registration reports to identify new registrations for each of our online programs (in addition to usage reports for each class).

This month, I'm not able to generate a registration report for any date before today. I've had no problem pulling up and downloading uses reports for every class this month but one I set the date parameters back to the beginning of November, nothing comes up beyond today's date.

I've Submitted a ticket to support regarding this. I thought I might check to see if anyone else has been dealing with this problem.