O365 Calendar integration suddenly stopped working

First time using Community for an issue, I am running out of ideas so hoping someone has run into this issue before.  Basically the O365 calendar integration with Zoom stopped working sometime last week.  According to our Exchange Admin, the integration is still functioning and is setup the same way it always has been, but the only meetings we see are ones that we are hosting.  I do not see the rest of my Outlook meetings showing up anymore.  I am not sure if it is because of the latest Zoom update, or if its just coincidence.  I tried setting it up for other users, and we don't get any errors during the setup, and once we set it up it appears to finish as the "Add Calendar" option in the Zoom App disappears...though we don't see any other meetings.  I have tried this with multiple people to add new, and I have tried resyncing my account.  I can confirm this has been working for well over a year in our environment, and just stopped working within the past week or so.  Any ideas out there?