From Ticket #38973
An Assessment Report card displaying only one grading period (ex: 1st Semester) uses a different template/layout than an assessment report card displaying multiple terms. So, Assessment Report cards displaying one grading period does not group grades and comments based on the Grades and Comments setting.
However, when an assessment report card is set to display two or more grading periods, the software automatically selects the Group Grades and Comments check box. This is because the software utilizes a different template/layout in order to display both terms.