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Troubleshooting Invisible Mailchimp Embedded Forms in WPBakery Page Builder

If you’re managing a WordPress website and have encountered issues with embedded Mailchimp forms not appearing or being editable within WPBakery Page Builder, you’re not alone. This common challenge can be perplexing, especially when the form renders correctly on the live site but remains elusive in the editor interface.

The Situation

Recently, I discovered a Mailchimp subscription form embedded on the homepage of my website (www.tiptoplaptop.nl). The form utilizes the standard Mailchimp embed code, typically a <form action="https://...list-manage.com/subscribe/post?..."> snippet.

However, despite the form displaying correctly to visitors, I couldn’t locate or modify this embedded element within WPBakery Page Builder. The form’s code appears to be “invisible” in the editor—no Raw HTML or Custom HTML blocks contain the form code, making edits and updates challenging.

Actions Taken So Far

In attempting to resolve this, I have:

• Switched between the Classic Editor and WPBakery (both backend and frontend modes)
• Checked for the form code in widget areas, headers, and footers
• Searched the page content in “Text” (HTML) and “Code” views
• Explored shortcodes or custom fields that might be injecting the form
• Examined theme files, including header.php, footer.php, and template parts for embedded code

Despite these efforts, the form remains visible only on the live site but absent from the editor’s view.

My Objectives

My primary goal is to update or remove this Mailchimp embed code. Additionally, I would like to implement a redirect to a thank-you page upon subscription, potentially using JavaScript.

Before proceeding, I need to understand how to locate and edit this “hidden” HTML element effectively.

Key Questions

1. Why might a Mailchimp embed code be visible on the front end but absent in WPBakery’s editor?
   Are there scenarios where embedded scripts or forms are injected dynamically or via scripts that don’t appear as standard blocks?

2. Are there alternative locations in WordPress where this code could reside?
   For example, could it be present in the database, injected via a plugin, or embedded in theme template