Authorization of cockpit-application not working

I authorized the group of a user to the cockpit -application. I gave the group full access to the Process Definition and Process Instance authorizations.

When I try to log the user in, I see the Welcome screen and in the application overview the option to navigate to the cockpit-application. However, when I click this, I get the Login screen again.

I configured another group to use the Tasklist application and that is working as expected.

I tried to give the authorization on user-level instead of group-level but the same problems still exist.

I accidentally removed the User Authorizations from my user to my user. This fixed my problem. I found the solution when another user logged in and had no problems. And the found this to be the only difference between the two accounts.