Outlook 2010 - Calendars missing items?

[mike86]

Hi Guys,

 

One of our teachers has set up a separate calendar that she uses for room timetabling & has been using it for a few months, however for some reason today it has no items within it yet the calendar is still there. I have tried all the usual view options that usually hide items, checked deleted items (no cal items), recover deleted items (no cal items). Mailbox on O365 and can't see a way of restoring an older version.

 

Any ideas?

 

Cheers