Common causes:

• Plugin conflicts (most common)
• Insufficient PHP memory
• Caching/minification breaking scripts
• REST API blocked
• Cloudflare / CDN blocking requests
• Old or corrupted Elementor files
• Incorrect file permissions
• SSL mixed content errors
• Theme JavaScript conflict

Follow the steps below to diagnose and fix the issue completely.

Temporarily disable:

• LiteSpeed Cache
• WP Rocket
• W3 Total Cache
• Autoptimize
• Hummingbird
• Asset CleanUp
• SG Optimizer

Then reload the Elementor editor.

If it loads → the issue was caused by JS/CSS optimization.

define( 'WP_MEMORY_LIMIT', '512M' );
define( 'WP_MAX_MEMORY_LIMIT', '512M' );
    

Then restart PHP from your hosting control panel.

Elementor recommends a minimum of 256M, but 512M is ideal.

Steps:

1. Deactivate all plugins except Elementor & Elementor Pro
2. Reload the editor
3. Re-activate plugins one by one to identify the culprit

Common conflict-causing plugins:

• Security plugins (Wordfence, AIOS, iThemes)
• Optimization/minification plugins
• Old page builder plugins
• Outdated premium plugins

Go to:

• Elementor → Tools → Safe Mode

If the editor loads in Safe Mode → plugin or theme conflict confirmed.

Go to:

• Tools → Site Health → Status

Look for REST API errors.

Possible causes:

• Security plugins blocking routes
• Firewall / ModSecurity blocks
• Cloudflare blocking /wp-json/

Fix by disabling blocks (handled below).

Disable temporarily:

• Bot Fight Mode
• Under Attack Mode
• Rocket Loader

Add a Page Rule:

*yourdomain.com/wp-admin*
Disable Security
Disable Performance
Cache Level: Bypass
    

Also bypass /wp-json/ requests.

Go to:

• Elementor → Tools → Regenerate CSS & Data
• Elementor → Tools → Sync Library

Then clear your entire WordPress cache.

Steps:

• Switch to Twenty Twenty-Four
• Try loading Elementor again

If it works → your theme caused the conflict.

• Folders → 755
• Files → 644

Check especially:

• /wp-content/uploads/elementor/
• /wp-content/plugins/elementor/
• /wp-content/themes/

Disable:

• Elementor Maintenance Mode
• Coming Soon plugins
• Maintenance mode from hosting (Hostinger, SiteGround)

• Update Elementor
• Update Elementor Pro
• Update WordPress core
• Update your theme
• Update all plugins

Outdated jQuery is one of the biggest Elementor loading issues.