Hello @tomcmp
Thanks for reaching out about the issue you encountered. In the screencast, I noticed you got the following errors:
Warning: Cannot modify header information - headers already sent by (output started at home/brigadesnature-ppd/public/wp-content/themes/Divi-child/functions.php: 688) in home brigadenature-ppd/public_html/wp-admin/post.php 201
These errors are related to Divi and not the Yoast SEO plugin. You also have a lot of plugins that need updating. I recommend updating those plugins, and if the issue persists, then perform a conflict check. The fastest way to rule out any conflict is to deactivate all non-Yoast plugins and switch to a standard theme like Twenty Twenty-Two.
Please test this on your development or staging site if you have one. If not, we recommend using the Health Check & Troubleshooting plugin. This plugin has a troubleshooting mode, which does not affect normal visitors to your site.
If you’re unfamiliar with checking for conflicts, we’d like to point you to a step-by-step guide that will walk you through the process: How to check for plugin conflicts
If you feel uncomfortable doing this yourself or if this does not solve your issue, our Yoast SEO Premium plugin comes with one year of (technical) support.