@rfc2822 thank you.
I have deleted the entry, it still does not synch, but I am giving it time, so far the debugger is not yet telling me anything. It simply does not synch.
I use regular Outlook on Windows, coupled with iCloud for Windows to synch with iCloud. That’s the best way I have found to keep my Outlook calendar synch with my Android phone.
I will post new debug messages if they appear.
Thank you for your help