Not all disabled users are shown when i'm logged in with a group admin user

We are on “Nextcloud 28.0.5”. The following Problem:

When i log in as a admin-user, i can see all disabled user in the list (“/settings/users/disabled”). But when i’m logged in as a normal user that is group-admin, i don’t see all the disabled users within this group where i am group-admin.

Any clue what happens here?

Push… nobody has the same issue?