How do I get the events in the calendar overview?

I try to show the events that I created in the overview of the calendar. However, nothing is shown here, it seems that there are no events.

The calendar is added to the 'root' group, so not in a sub group but on the community itself. This widget is shown on the homepage.

Note: I do know how to get a list in a seperate widget. However, I do want the event (or an icon for an event) to be shown within this calendar. So you see that i.e. on the 18th there is an event. It now just seems empty, only the current date is marked. 



additional info
[edited by: Irene van der Zanden at 1:44 PM (GMT 0) on Mon, Sep 12 2022]