---
title: "Kadence Blocks Errors when SCRIPT_DEBUG is Enabled"
source: "https://docs.nexcess.com/software/kadence/blocks/block-errors-when-script-debug-is-enabled/"
description: "Some users have reported encountering issues with Kadence Blocks when the SCRIPT_DEBUG constant is enabled in their WordPress configuration. This document outli…"
vertical: "Software"
area: "Kadence Blocks"
date: "2025-07-30"
last_modified: "2026-07-02"
---

# Kadence Blocks Errors when SCRIPT_DEBUG is Enabled

Some users have reported encountering issues with **Kadence Blocks** when the `SCRIPT_DEBUG` constant is enabled in their WordPress configuration. This document outlines the common symptoms, the cause, and a confirmed workaround.

## Common Symptoms

These issues typically occur while editing pages or posts whenever `SCRIPT_DEBUG` is enabled:

- **Blocks fail to render** or display as generic “HTML” blocks.
- **JavaScript errors** appear in the browser console (*[check our guide on how to see the console errors here)](https://docs.nexcess.com/software/kadence/view-console-log-errors/)*, such as: 
    - `Uncaught TypeError`
    - `Cannot read properties of undefined`
- **“This block has encountered an error and cannot be previewed”** message.
- Errors appear when limiting posts by taxonomy in blocks like the **Post Grid/Carousel**.
- Row Layout block generates more than the selected number of columns. Example: Selecting 1 column will generate 3 columns instead.

## Cause

The `SCRIPT_DEBUG` constant tells WordPress to use **unminified (development)** versions of core and plugin JavaScript and CSS files instead of the optimized/minified versions.

> ***Important**: Enabling `SCRIPT_DEBUG` is generally not recommended on live or production websites. It can expose development assets, reduce performance, and cause compatibility issues like the symptoms above.*

## Solution/Workaround

To resolve the issue, set `SCRIPT_DEBUG` to `false` in the `wp-config.php` file:

```
define( 'SCRIPT_DEBUG', false );
```

Since this requires access to site files, it is recommended to contact your hosting provider if you’re not comfortable making this change yourself.

**Additional Troubleshooting Steps:**

- **[Kadence Troubleshooting Guide](https://www.kadencewp.com/blog/how-to-troubleshoot-your-website)** – This guide goes over general troubleshooting steps.
- **[How to view Console Logged Errors](https://docs.nexcess.com/software/kadence/view-console-log-errors/)** – Console errors in your browser can help identify what’s causing the white screen or failed editor load.
- [**How to enable the WordPress Error Logs**](https://docs.nexcess.com/software/kadence/enable-wordpress-error-logs/) – WordPress error logs can reveal PHP errors or warnings that may be causing issues behind the scenes.
- **Support** – Feel free to contact our support team for further assistance. 
    - **[Free Support](https://www.kadencewp.com/help-center/free-support/)**
    - **[Premium Support](https://www.kadencewp.com/help-center/premium-support/)**