For this test you will need a student and a teacher/admin. You'll also need two browsers. For example firefox and chrome. In advanced settings make sure that Enable conditional access is ticked. Go to the categories and items screen in the gradebook. You'll need a category containing a single activity. Create these if necessary. The activity and category should be visible. Edit the activity settings and add a condition under "Restrict access". Make it a condition that the student will not meet. I used requiring the user field "Yahoo ID" to be not empty. Make sure that "before activity can be accessed" is set to "hide activity entirely". As both the student and the teacher/admin go to the gradebook and go to the user report. One in each browser. Both users should be viewing the student's user report. The teacher/admin will need to select the specific student on the user report. Make sure that the formatting is ok. It should not be like the student view screenshot attached to this issue. As the student go enter the Yahoo ID or whatever they have to do to satisfy the condition. Reload the user report as both users. Check it still displays ok. As teacher/admin go to the categories and items screen and hide the activity. Reload the user report as both users. Check it still displays ok.