The system will generate multiples of a report card for a single student when that student has more than one address marked as a mailing address in Core. In order to generate a single report card, one of the mailing addresses must be removed. 

To do so: 
  1. Navigate to Core
  2. Select Users/Access
  3. Select Profile
  4. Search for the student in Edit User Profile Data
  5. Under Address in his or her profile, click Edit for the address you wish to remove as a mailing address
  6. Unmark the Mailing Address checkbox
  7. Click Save & Exit