Hi @cedernet
Would it be possible for you to attach a screenshot (using snipboard.io or a similar site) on what happens when you try to add a Yoast How-To or FAQ structured data block to your content and any relevant error messages you are seeing?
Are you using the standard WordPress block editor to add your content or are you using a third-party page builder or custom theme box to add your content?
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
Could you test this out with a default WP theme and only the Yoast SEO 18.1 plugin enabled and see if you are able to successfully add one of the Yoast structured data blocks without any issues?
