Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
My case is #2502260040008631. My tech support person was able to reproduce what is going on with the calendar. It looks like they may be working on it because now when you open the calendar although it is still starting with 1899, there is a Today button now that actually takes you to "today".
We are also having issues with Outlook on web calendar when you try to share your calendar using "share calendar". The links are not working for the invitee. I was told although this is related have to create another support case which I am also doing this morning.
I still do not understand the fear/hesitancy of posting this in Service Health (first place I go before researching any M365 issues).