Integrate a script through Elementor's HTML widget dynamically

Question

I am working on an integration with an external booking system (Bookeo.com). On my WP website, I've created a template that will serve content from each treatment page's metaboxes and custom fields via Elementor's dynamic content. The booking itself takes place on Bookeo.com but they offer integration solutions individually per service offered. Now to my question: I am inserting a script that calls the specific service from Bookeo.com in the Elementor's HTML widget and call it dynamically from the page's custom field. Nothing appears on the front. When I insert the script as it is, without dynamic content, it does get displayed. What can be the cause of such behaviour and can somebody give me a solution or a workaround to this? Thanks.