Why does it give a 404 error on a certain category of pages when you turn on SEF Advanced Mode?

Question

CMS

Good afternoon!
Created a new category of pages "Our services" on the site. I use the module to display a list of links to pages with services on the main page. The category had links with id at the beginning. Removed them by putting code in the config.xml file

<field name="sef_advanced_link" type="radio" default="1" label="SefAdvancedMode" description="Remove Item ID from Content URL?">
      <option value="0">JNO</option>
      <option value="1">JYES</option>
    </field>

and setting the option Yes through the admin panel.
Ids from links disappeared, but pages in this category began to give 404 errors. I found a tip to change the if ($count == 1) { line to if ($count == 1 && !$advanced) {
in the router.php file, but that didn't work. In the settings of categories and modules, I do not find any differences from others. However, the error is only in this category. What could be the reason?

Answer 1

There is another hack, it is for 3.1, but maybe it was formed somewhere else.

в файле components/com_content/router.php
на примерно 377 строке:
код
->where($db->qu oteName('alias' ). ' = ' . $db->quote($db- >quote($seg ment)));
надо заменить на
->where($db->qu oteName('alias' ). ' = ' . $db->quote($seg ment) );

Well, quite a banal decision.
Check if the .htaccess file is valid and not the default htaccess.txt

Answer 2

The line there is already the last option. htaccess is correct too. What is the reason, I have no idea.