Issue: When an instructor creates a single group on a course site, and grants a TA permission to grade “all sections”, only the accounts of the members of the single group will appear in the grade book spreadsheet.

Workaround: Create a second group that includes all of the students and student non-registered accounts. Affirm that the TA has permission to grade “all sections” (Gradebook2 / Edit / Grader Permissions Settings).  This will display the accounts of the entire class on the Gradebook spreadsheet.

Status: Issue is being investigated by Trunk developers (Trunk-443) and Sakai Foundation (https://jira.sakaiproject.org/browse/GRBK-1431)