Porcess Manager Login and "single sign-on authentication"

Hello

I have a Workflow Server 7.1 Sp2. The server name is „SD7“.
I start the „ProcessManager“ from Client with user „TestUser1“. Then the "single sign-on authentication" is working.

I create a Workflow „myTestWF“ and insert the „Process Manager Login“ – component.
Then I publish the Workflow (http://SD7/myTestWF)but then the "single sign-on authentication" does not working.
For more information please see my attached .pdf document within myTestWF screenshots.

Thanks in advance for your help
Best regards