Hi weirdly enough everything in Calendar is back to normal now. I fresh installed Monterey on another volume and then made macOS Calendar work there (there was no entry, everything at that time was seemingly erased but I can edit and add "New Event" in this freshly installed Monterey- latest version), I then logged on to my main macOS and logged in on my iCloud account, made sure I clicked on Calendar and it all went back. Even the Calendar entries on iCloud itself is back. This is a major Monterey bug Apple friends. Kindly report to sir Craig Federigli. It's nice it's back
but there's been a problem since last year- my .dmg and external hard disk and flashdrive won't mount (I've not had backed up to Time Machine for more than 6 months now, any Terminal fix for this). If I use the external hard drive and flash drive on another computer, it mounts and can detect it (not a hardware problem). Would you know of a free app that'll mount external hard disks and flashdrives? I use FastDMG at the moment to mount the .dmg so I can install something.