Hi?@alittlehales
We apologize for the inconvenience you are having with the Yoast SEO plugin.
Usually, these problems occur when there is a conflict with another plugin or theme that breaks the functionality. Can you please check the browser console for errors and send us a screenshot? You can find more information here: How to find JavaScript errors with your browser’s console?
Also, it might be useful to run a conflict check to verify what could be causing the conflict. 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
Can you please let us know if you find any additional information that can help us find the cause of the problem?