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Elementor widget panel not loading

Elementor builds the widget panel through an AJAX call that loads a React app. The call requires sufficient PHP memory and unrestricted server access.

If memory is low, a plugin blocks the script, or the server denies the request, the response never reaches the browser. The result is a spinner, a blank area, or a missing sidebar.

Symptoms

[dashicons-warning]
Infinite loading spinner
You see a spinning icon on the left side and it never stops.
[dashicons-admin-plugins]
Blank widget area
The widget panel shows a white or grey space with no tabs.
[dashicons-no]
Missing sidebar
The left column disappears, leaving only the canvas.
[dashicons-editor-code]
Console errors
Browser console reports uncaught type errors or failed admin‑ajax requests.

Common Causes

Low PHP memory
Memory limit below 256 MB stops the AJAX request that builds the panel.
Out‑of‑date Elementor
Running an older version introduces JavaScript incompatibilities.
Plugin conflict
Another plugin enqueues scripts that clash with Elementor’s JavaScript.
Server restrictions
ModSecurity or similar rules block admin‑ajax.php responses.
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