My Calendar is not updated with my events created into the CRM

My Calendar is not updated with my events created into the CRM

Hi there,

We are using Zoho for CRM, DOCS and EMAILS. All of us have shared their calendars so we know what meetings are booked with clients and at what time. Recently, I have noticed that events created into the CRM are no longer updated and shared into the calendar. 

I have made no changes so this is very strange for me...

Any idea?

Cheers,

Fred