Pagebuilder Modules empty after Saving

Hi,
I'm having an issue with my Pagebuilder modules. They work just fine, however after saving they appear as empty paragraph on the site:

<div class="sp-column">
    <div class="sp-module bottom_menu">
        <div class="sp-module-content">
            <div class="mod-sppagebuilder bottom_menu sp-page-builder" data-module_id="108">
                <div class="page-content">
                    <p></p> 
                </div>
            </div>
        </div>
    </div>
</div>

When I open the module in the backend, everything looks fine though.
We're using the 3.9.9 Version of the Flex Template (Helix 3) as well as Page Builder 3.8.10
Any help would be appreciated.
Best regards,

Ian Husting