Issue

After connecting Events Design Element to the SharePoint calendar, that has additional overlaid calendars, only events from the main calendar are shown. The events from the overlaid calendars are not displayed:

Prerequisites

1. You are connecting Events Design Element to the SharePoint calendar, that has at least one Overlay Calendar:

   2. You have events items for both calendars:

Reason

There is no direct API provided by SharePoint to get all events from different SharePoint calendars in a single call.

As having multiple calls for each overlaid calendar will impact the page performance heavily, this issue is a limitation in the product. 

We recommend using several Events Design Elements and connecting to each calendar separately.

Related articles:

• Introducing ShortPoint Events Design Element 
• How to Connect Events to a SharePoint Calendar