WebCal Windows 10 Mail Sync via Icloud Account not possible


some days ago I need to reset my windows. I used the Windows 10 Calendar app to sync my calendar form Nextcloud 20, 2FA and the app password


I have 2 Windows machines running with my setup (Sync via Icloud). I done this procedure multiple times.

With a new update of the mail / calendar app, I cannot add a fake icloud account like it is described in docu. It only says “Try again” and when you click this button 3 times you are directed to Manual IMAP account creation.

Do you have an idea how to solve this?