Has anyone else had this experience?
A teacher invited a co-teacher into her course, containing sections (per 1 and 6). The Co-teacher added an assignment into the course, and excused students from Per 1 via the gradebook. The "main" teacher in the canvas course went into Speedgrader to remove the ex so students can turn in the assignment and she was unable to remove the ex. She would delete and the page would quickly refresh with the ex. Even if she left the page to another student and came back it would have the ex.
If she then goes to the gradebook to remove the ex she is able to then change the grade in Speedgrader.