Featured Images NOT showing ON CALENDAR BLOCK

Can someone please help me?

I'm using the Calendar block and the "Featured Event' Images are not showing.  Is it too much to hope that someone else has the answer to this problem?

This is the URL

https://www.koralia.com/retiros

Thank you 😉

I am also having this problem and this is all I was able to figure out: When the block width is smaller than 600 pixels, titles, event times, and excerpts display, but not featured images.

Thanks, this was super helpful.  Simple.  Why is that not posted anywhere?