Calendar entries gone

Nick 1 Reputation point

I'm using MS Office 2019 (however I have the same problem on MS Office 2010 so I don't think it's related to the office version). Recently I removed an email account (POP) and added it back (as IMAP), and then my calendar entries were gone. However, I don't understand how that could have caused the issue, as my calendar entries are saved in a separate file (Outlook.pst) which isn't related to the email account I removed and added back.

What's very strange: I can still see all the deleted items in the Outlook.pst file, however the actual calendar entries are gone (except 2 entries for some reason, those were there before; but I had hundreds).

I used the scanpst.exe on my Outlook.pst file, but no changes.

What may have happened here, and how to get my old calendar entries back?

Outlook Management
Outlook Management
Outlook: A family of Microsoft email and calendar products.Management: The act or process of organizing, handling, directing or controlling something.
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