The instructor gives 'delete' permissions to the TA, but the TA is unable to delete any assignments. The remove column with the checkboxes is not showing up to the TA.
If the TA is given permissions to 'delete' and also the 'new' permissions, the TA is shown the remove column with the checkboxes, but an error messages appears when trying to remove an assignment - "you are not allowed to remove .."
For the TA to be able to delete an assignment, he needs to be given the 'new', 'delete' and 'revise' permissions.
The TA (or student) should be able to delete an assignment if the 'delete' permissions is given, or not given the option if he cannot really remove an assignment.