Hello,

As mentioned in https://moodle.org/mod/forum/discuss.php?d=457566#p1837754, in courses, the "All participants" drop-down menu lists only participants belonging to a group. With this label, teachers expect to list all participants, all the more so since another drop-down menu allows you to filter on a particular group.

To reproduce :

1. Log as a teacher.
2. Create a course and enroll some participants in.
3. Create 2 groups and enroll all participants (students and teachers) in one or two of theses groups.
4. Check Rapports > Log page. All filters are ready to list "all" (for all drop-down menus).
5. Open the drop-down menu "All participants" : you should see all users enrolled in the course (teachers and students).
6. Go back to participants management and remove one student and one teacher from their group(s), to make them groupless.
7. Check again Rapports > Log page.
8. Open the drop-down menu "All participants" : you should see a list not containing the groupless persons.
9. Log as an admin.
10. Open the same course the teacher used.
11. Check Rapports > Log page. All filters are ready to list "all" (for all drop-down menus).
12. Open the drop-down menu "All participants" : you should see the same list, which is not containing the groupless persons.

Results :

• This drop-down menu only list participants belonging to a group (or groups). If a teacher or a student is groupless, he/she won't be listed here and can't be selected to filter results (for the teacher and for an admin).
• This results is for the teacher but also for an admin.
• This results can be reproduced for "visible groups" mode and "separate groups" mode (in course parameters). No issue if in "no group" mode : all participants are listed.

Expected results :

• This drop-down menu list all participants, weather or not they belong to a group(s), weather the cours is in "visible groups" or "separate groups".

Thanks by advance,
Regards,
Marina