Can not set/change permissions for specific group for a folder 19.0.4

Hi folks,

we fail to change the sharing permissions for groups on specific folders by other users in our team.
For the sake of simplicity, we are all member of the admin group. So permissions should not be the real issue.

If a share/folder is created by another team member, others can not change or revoke permissions/settings for groups. See screenshots

(here i can not set any permissions for the group)

(here i can change settings)

Is this a known problem?

thank you.