thanks for the help.
he did not set the badge to not whow up but it was configured in this way.
maybe the default is wrong there.
It now works for him.
The Group Badge
ChurchToolsMitarbeiter does not show only for one user of a group.
Here is how it is configured:
In this thread it is visible: https://forum.church.tools/topic/5910/version-3-56/27
jziegeler have the badge but
jpawellek does not.
What can i do to let the badge show up for