Hi TK, 

I'm noticing this issue as well, even after thoroughly replacing my MAPI account. I'll get this issue escalated. If we need additional information for review, I'll reach out. 

Kind regards,

Just came on here to check if it's been resolved, I guess not!

If I put my computer to sleep, then on wake Outlook doesn't load up the latest messages, I have to close it and re-open.

Even if I hit the send and receive button nothing - Outlook still says "All folders are up to date", but of course they are not.

Hi all

I didn't experience the problem anymore from my side

I just wanted to chime in that I was able to test the sync issues Andrea was having previously on a newer code base and her account is now syncing without requiring intervention. So, I think this would be good to get a new test done on when the next beta build is made available. Be sure to resync your Outlook install once you upgrade though just to be safe: 

https://portal.smartertools.com/kb/a3487/how-to-thoroughly-replace-your-mapi-account.aspx 

If you still have problems with this at that point we're likely looking at something account-specific and we'll likely need to get a ticket started with you so we can collect those details.