Hello Robin,
As per our check, your settings are correct and should work just fine. Most probably, the scopes of your property patterns are configured incorrectly and the one from the screenshot is not applied. To check the pattern that is applied, click the hamburger button next to the UPN-Anmeldname field on the form. You should see something like below. The property pattern name and its container will be displayed in the bottom right corner of the popup.