Magento2.4 – Stores Configuration Side Menu Disappeared

adminadminhtmlmagento2.4magento2.4.3

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.

Best Answer

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"/>
</page>

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

Related Solutions

Magento – Access Denied Errors After Installing SUPEE-6285

As written here:

If you use restricted admin accounts, some menus of third party extensions might not work anymore for them. The reason is that the default return value of Mage_Adminhtml_Controller_Action::_isAllowed() has been changed from true to Mage::getSingleton('admin/session')->isAllowed('admin'). Extensions that do not override this method in their admin controllers because they don't use the ACL, now need the "ALL" privilege.

The only solution is to patch the extensions and add this method to all their admin controllers:

protected function _isAllowed()
{
    return true;
}

Or if they actually have an ACL resource defined in etc/adminhtml.xml:

protected function _isAllowed()
{
    return Mage::getSingleton('admin/session')->isAllowed('ENTER RESOURCE IDENTIFIER HERE');
}

How to determine the resource identifier

This is how an adminhtml.xml might look like:

Mage_Setup example (acl)

Take the node names below acl/resources/admin/children, skipping following children nodes.

How to create missing resource identifiers

If there is only a <menu> definition but no <acl> definition, you can also define your own (it does not have to be within the same module, so no 3rd party files have to be modified)::

Mage_Setup example (menu)

Copy everything below menu to acl/resources/admin/children and remove the <action> nodes.

Automatic fix

There is a good command line tool by SupportDesk.nu at https://gist.github.com/raybogman/eec47237b8ef0d4dd0fd

It handles most missing _isAllowed() calls quite well but will result in broken code with obfuscated or encrypted source files, so you still should check the results manually.

Magento 2.4.3 – UI Component Rendering Error Due to System Exception

Looks like it's a 2.4.3 issue with sessions.

Github issue: https://github.com/magento/magento2/issues/33748

After setting security sessions to 0 the issue stopped.

Stores->Configuration->Advanced->System->Max Session Size in Admin

Stores->Configuration->Advanced->System->Max Session Size in Storefront

bin/magento config:set system/security/max_session_size_admin 2592000

bin/magento config:set system/security/max_session_size_storefront 2592000

Not sure if this is a full solution yet. Hopefully they come up with a better solution than just setting the value to 0.

UPDATE:

Another solution is to change disable_locking in your redis session settings:

'disable_locking' => '0', to 'disable_locking' => '1'