Hi Larry
Can you check the Feedback activity to see what the Activity completion criteria is - what I think has happened is the Feedback activity is being marked complete by something other than the submission of the feedback - eg manually marked as complete by the user.
The user is getting the escalation as they haven't submitted their assessment - they have completed the activity.
Selecting the activity completion condition of View as completed if the feedback is submitted should resolve this if this is the case.
Regards