HTML blocks with Shema.org

Hi,

We’ve made a html block with a FAQ according to the Schema.org structure for a FAQ. We did this with the YoastSEO plugin and adding a Gutenberg block.

If we make a page with a FAQ with the Yoast SEO plugin within the Gutenberg editor (in WPBakery), it works fine, but if we add a html block with the same FAQ on a product page, Scheme.org is not able to detect the FAQ structure.

Can you please advise? According to Yoast it should work with their plugin, so they expect that the html block or wpBakery editor hast something to do with it.

Hope you can help.