Cannot open AO Workbook saved in Role

Dear Experts,

     In our project, we use the Analysis for Ms Office version 1.4.12.3394. When I saved my workbook to role, the system shows all the roles assigned to me as below picture:

      However, when I try to reopen the saved workbook from View -> Role, the open dialog shows empty.

       However, I can search my report through Search menu and open it correctly.

    I try to search SAP note and SDN forum but not see any useful information. Is there anyone facing the same problem

Best regards,