Can't see Authorization tab with policies, permissions etc

We have started to test Keycloak 12.0.2. It seems there is missing the tab “Authorization” with all settings for fine-grained authorization policies as descirbed in the documentation Authorization Services Guide
The docker is running with -Dkeycloak.profile.feature.admin_fine_grained_authz=enabled
Did we miss something related the startup setting or setting of realm?

You have to set “Authorization Enabled” in your client settings. The client must be OIDC of type “confidential”