@c0rg1
We’re sorry to hear that you’re having a problem with the Yoast SEO plugin. A blank meta box issue occurs due to a JavaScript conflict. We’d like you to perform a conflict check to help us determine the next steps while saving you time.
Often, we see problems occur in combination with another plugin or theme. The fastest way to rule out any conflict is to deactivate all non-Yoast plugins and switch to a standard theme like Twenty Twenty.
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
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This forum is reserved for supporting the free version of Yoast SEO. As this topic is about a premium plugin and your site is using a premium plugin so this thread has been marked as resolved per the forum guidelines.
Please contact our support team attaching a conflict check details for further assistance if you have an active premium subscription. How can I get premium support?