Missing field “mainEntity” with Yoast FAQ block

Thank you for bringing this issue to our attention!We apologize?for the trouble you are currently experiencing with our plugin. Luckily, a so-called “bug report” (a description of the issue, so we can fix it) is filed already.

What’s next? Our product team will assess the severity of this problem in relation to other open bug reports and new features. Based on their assessment, the bug report will be given a priority level. Our developers work on the highest priority issues first. Unfortunately, this means we cannot give you an estimate of when they’ll start working on your report. If you have any further information that may affect the prioritization or help our development team solve this bug, please feel invited to reply to this forum topic.

We wanted to let you know that we found that Google has suddenly changed the way it wants the FAQ schema markup and in particular, the FAQ block. We have a request with our developers to look into changing it to what Google now prefers. Please note that this error is only expected to impact how Google would show the FAQ rich snippet in the Google search pages. Nothing else is expected to be impacted.

We’re going to be releasing a patch for this soon to address the issue, so please do make sure to update once it releases, and it should fix the error.

Thanks for your patience in advance!

We have already released the Yoast SEO v15.9.1 that comes with the relevant patch. Please, update the plugin to the latest version to have the relevant fix in place. You can find further information about the latest release here: https://yoast.com/wordpress-5-7-yoast-seo-15-9-1/

Updating the Yoast Plugin fixed this issue for me. If you have a caching plugin installed, make sure you clear your caches after updating.