Calendar for Office 365 not updating

Having the same issue with the latest beta.

I'm having a very similar issue -- I wiped my laptop last week and installed the latest beta. Re-added my institutional Exchange account -- Mail syncs up fine, but the calendar and the contacts aren't syncing. I've removed and re-added the account a number of times -- sometimes I get no calendar showing up in Calendar, sometimes it shows up, but never does any content show. As far as Address Book, the account shows up. Sometimes my personal contacts show, sometimes they don't, but the Exchange "Suggested Contacts" never show, and the Global Address List is never searchable.

Having the same issue as well, and like the others it started with beta 2 and continued with beta 3. I submitted a bug issue with Apple and have sent them a number of logfiles, etc. Hopefully, the issue will be addressed in the next beta release. Much like everyone else, I have not found a workaround. Adding and deleting Exchange accounts does not address the problem, nor does the usual cache fixes.

As others have noted as well, mail appears to be working correctly, although with the contacts isssue, it will not locate new names in a company global address book, for example. The problem appears confined to Sierra 10.12.2 beta releases. I have not had similar issues with my devices running iOS 10.2 beta instances.

This appears to have corrected itself in macOS 10.12.2 Beta 4 (16C53a) - released today

I am still having the same issue. I deleted my Exchange account information (365) and attempted to reinstalling to jumpstart calendaring for previous beta releases (2&3). I tried to recreate today under beta 4 and still no Exchange calendar items will appear in my Sierra 10.12.2 calendar. Again, they are fine under iOS beta versions, and were fine under beta 1. Did you do anything different with beta 4 to get exchange calendaring working?

It appears to be working for me too.

Twittyct, I had the same problem as you, originally. Simply deleting the account and recreating it did NOT work by itself. I also had to clear out the "Calendar Cache" files in ~/Library/Calendars. That fixed it for me.

Agree - apologized if my response was vague. I too had to delete the Calendar Cache files. No issues since.

Thanks. I had all of my exchange calendar events magically appear several hours after beta 4 installation, and thought I had the problem beat, but the calendar wasn't updating consistently, and then not at all. Trying again deleting the exchange server settings and the calendar cache files.