HTML in Rich text element within a collection

Hi, I am wanting to create a Mailchimp archive on my site where the HTML from each campaign is displayed on the Webflow page in a rich text element. It has worked sporadically but I am looking to find out if this is possible reliably. I am sending the mailchimp campaign code to the CMS via Zapier and linking it to a rich text element within the collection.


Here is my site Read-Only: https://preview.webflow.com/preview/steward-capital-2021?utm_medium=preview_link&utm_source=designer&utm_content=steward-capital-2021&preview=baaad2dddc04785c5a329cd7e57d4e7e&pageId=60adeed5ff462487a9c2ffd2&workflow=preview

(how to share your site Read-Only link)

That is not a lot to go by on this end IMHO. The more details you share (with examples), the higher the chance someone can assist you.