embedded instagram image at friendsofcalligraphy.org does not load

[hm933]

• Facebook Container Version: 2.3.10
• Operating System + Version: Mac OS 11.78
• Firefox Version: 114.0.2
• Other installed Add-ons + Version + Enabled/Disabled-Status:

I disabled all my extensions and found the problem went away. So I reenabled them and started looking for a likely culprit. With all other extensions enabled and Facebook Container disabled, the problem is gone. I don't remember this being a problem several months ago when I was last on the site. I know that a newer version of Safari (which I have not installed) had (possibly temporary) problems displaying facebook and instagram images, but the problem may have gone away on its own, suggesting it's something Meta did. Anyway, the page does contain a warning that the image may not appear on Safari. There are no problems displaying the page properly in Safari or Chrome

Actual behavior

Expected behavior

Steps to reproduce

1. navigate to https://www.friendsofcalligraphy.org/

Notes