GitLab Authentik SAML Groups not working as expected

I've configured GitLab to work with my Authentik SSO: gitlab_rails['omniauth_providers'] = [ { name: 'saml', label: 'Company SSO', groups_attribute: 'Groups', required_groups: ['gitlab_users'], admin_groups: ['gitlab_admins'], external_groups: ['gitlab_externals'], auditor_groups: ['gitlab_auditors'], }, } ] I have defined some groups inside Authentik and mapped them to GitLab inside the config. If I try to login with a user to GitLab which has no group, it's denied as expected. If I set the users group, I can login. When I now delete the user again and assign the admins group, I can also login but I can not see any admin controls. Am I missing something? I have followed this tutorial: https://docs.gitlab.com/ee/integration/saml.html