Thank you mich for your explanations and sorry for my being late. I tested that in the last couple of days, that I wait a bit longer before I logged in, but that’s happened as well, when I wait one day ore more.
I have never received a suggestion: “Would you like NoMachine to create a new screen and connect to the desktop?”
For me it remains a mystery, but I described the procedure in detail and attached the document.
I’m looking forward of your feedback!