We recently upgraded to Moodle 3.4, and we're now seeing an error in the Quiz module when we try to add a user override. We get an error message "No students have access to this quiz", though clearly many students have been taking and are still taking the quiz. The issue seems to be across all courses.
My guess would be that this has something to do with Groups, though I have tried changing these settings around without any luck. Generally, our courses are set up with the "separate groups" setting but group mode is not forced on the course level, and the quizzes are usually set up with "No groups".
Anyone who's experienced this issue know of a solution?