Why is there a delay in showing the recurrence activity in Sales Calendar?

Summary:

We are creating a recurring appointment -Team Huddle Type and it has a 30 mins or more delay in showing on the calendar.

We have set up the recurring appointments for a 10 week period and it was successfully saved, but it takes 30 mins or more to show up on the calendar. But when we tried creating a single event for a Team Huddle and it would show up on the calendar right away.

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