Dynamic content in Brizy custom blocks

Hi, I want to create a custom hero section for blog posts.
1. I create a new custom block “Hero single posts”
2. I built it with Brizy, using dynamic contents (in brizy they’re specified with hashtags, like #post_title and #post_autor)
3. I “hooked” the custom block to a hook at the beginning of the posts
4. The custom block appears but no clue of the dynamic contents!

Two options:
1. It’s a bug?
2. I cannot use dynamic contents in custom blocks built with page builder (if I use Gutenberg, dynamic content appears as expected)

Which one is the right answer?
Thanks!