On what page in the UI is the teacher attempting to save feedback? Is it the question editor, the grade editor, using a feedback template, etc.?
It's in the Grade Editor Screen. The teacher is not using a Feedback Template. They are using the Rich text editor to leave feedback on the Assignments. Do we have to submit the score again to save the feedback?
Yes the grader will need to select the submit score button for it to save that as part of the returned score to the student. If the teacher is grading the activity they may input a grade and not submit the score till after also after inputting feedback within the editor. This would prevent having to select the submit score button again.