I am stumped on this one. I have just begun to use the Feedback Activity for course evaluations. Some students cannot see the Feedback activity on their courses, while others can. I look at the profiles of the students with the problem and I do not see any difference from the students that do not have the problem. We are running Moodle 3.5.1.
Nobody answered this question, so I'll tell how I solved it myself. The students who could not see the feedback module needed to be assigned the role of student on the feedback module itself. This was done through: Gear Icon, Locally Assigned Roles > Student Role > Add.