I upgraded Magento from 2.4.1 to 2.4.3 and I have also upgraded my theme and related modules. After that, the side menu of the Store-> Configuration has disappeared and it's not showing anymore.

I have been developing on Magento for years and I have not seen this behavior before. Has anyone come across such a thing?

See screenshot for details.

enter image description here


2 Answers 2


I had the same strange issue, but in my case the bug appeared because of the usage such file \view\adminhtml\layout\adminhtml_system_config_edit.xml in my custom module:

<?xml version="1.0"?>
<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
  <update handle="editor"/>

It is an old fix for the WYSIWYG editor and it worked fine before Magento 2.4.3.


It turns out that the theme that I'm using is not yet compatible with the Magetno 2.4.3.

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