Google Calendar Events not visible in Agenda

The Agenda is blank and is not showing any of the Google Calendar events. I have multiple Google accounts on the device. When I click on ‘more’ in Agenda, it opens my Google Calendar. When I click on ‘New event’ in Agenda, it again opens up my Google Calendar with new event creation window. Even with this seeming link with Google Calendar, events don't show up on the Agenda, even those created by clicking ‘New event' in Agenda.