Facebook has changed how Facebook and Instagram content is embedded on WordPress websites. This includes videos, pictures, updates, and other content from both platforms.
Due to the change, if you have Facebook or Instagram content embedded on your website, it may no longer show up on your website.
The change was supposed to have happened this past weekend, but I manage one website that this change hasn’t affected (yet). I’m not sure why, but I’m watching to see if the Facebook content suddenly disappears.
Check your websites. If your embedded Facebook or Instagram content has disappeared, there’s an easy fix.
Smash Balloon has a couple of plugins that will fix the issue. You’ll need to install the plugins then login to your Facebook and/or Instagram account to connect it to your website.
WPBeginner has more more about How to Fix the Facebook and Instagram oEmbed Issue in WordPress