Outlook sync not working at all

The Outlook sync is now not working at all for me.  I tried retriggering the sync several times, then disconnected the calendar and reconnected a couple of times.  I tried clearing history etc.  But the outlook sync will not pull any events at all.  

Honestly, the sync hasn't been working properly since the sync update a few months ago.  I submitted a ticket then and was told to disconnect and reconnect my calendar, which I did.  The sync worked for a couple of days, but I haven't seen it automatically pull event updates since Feb or Mar.  I've had to manually trigger a sync a few times per week since.  But now I can't get any events at all.