Users cannot log in

I have Camunda 7.10 bound to mariadb 10.0. When I create new users, add them to a group and give that group access to the tasklist following https://docs.camunda.org/manual/7.10/webapps/admin/authorization-management/, the new users cannot log in.
If I assign a new user to the group camunda-admin, login is possible. If I create a group and assign that group all authorizations which are given to camunda-admin, I can also log in.
Which authorizations do I have to give a group as a minimum so that they can log in?

In order to log in to Admin the user needs to be granted:
ALLOW ACCESS permission for admin resource in Application Authorizations
With this minimum, they will be able to log in and see the lists of Users, Groups, and Tenants.