We continue to have ongoing issues with cancelling and rescheduling meetings in Outlook on accounts integrated with MAPI. Recipients won't get the messages or the meeting won't properly reschedule or be canceled? We've had a number of open cases re- Outlook / MAPI / Events. 

Wondering if anyone has seen issues like this?

On one domain with 50 users that set a lot of meetings, have conference rooms, and integrate with Zoom - we get reports on this maybe once a week. But it's intermittent and difficult to replicate. Since it involves usually multiple recipients.

If we can build a case here in the community perhaps we could coordinate a sharper bug report.