GeneratePress theme Headings are overwritten by Beaver Builder

Hello,

We use the child theme of GeneratePress in one of our sites.
We also use Beaver Builder in benefit of our clients.
In this case we disabled Beaver Builder editor for the posts.

The Issue.
In the Customizer we have set the H2 at example font-size: 32px;
But at the posts viewed from the front it's been overwritten by inline Beaver-Builder styling.

On the other hand, we want the GeneratePress to be leading. Except when we change the content on purpose.

Any idea where to look for in this case?

Kind Regards,

Niels de Vries