marcH-44

Problem:
The client is experiencing issues with regex redirects in Yoast SEO not functioning correctly when used with the WPML plugin. Specifically, redirects that include a language directory (e.g., /de/) fail, resulting in a 404 error.
Solution:
We recommend trying the following workaround:
1. Ensure you have a backup of your site.
2. Open the file

/wp-content/plugins/wp-seo-multilingual/classes/class-wpml-wpseo-redirection.php

in a code editor.
3. Replace the existing loop at line number 34 with the following code:

foreach ($redirections as $redirection) {<br />if($redirection['format'] == 'regex'){<br />if(strpos($url, '/', 0) !== 0){<br />$url = '/' . $url;<br />}<br />preg_match('~' . $redirection['origin'] . '~', $url, $matches);<br />if(count($matches) > 0){<br />return true;<br />}<br />} else if($redirection['origin'] === $url || '/' . $redirection['origin'] === $url){<br />return true;<br />}<br />}

4. Save the changes.
**** Important! Please make a full site backup (files and DB) before you proceed with these steps****
Additionally, we have published an errata page with two workarounds for this issue, which can be found here: https://wpml.org/errata/yoast-seo-redirection-regex-rules-differ-across-languages-with-wpml/

If this solution does not resolve your issue or seems irrelevant due to being outdated or not applicable to your case, we highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix, and confirming that you have installed the latest versions of themes and plugins. If further assistance is needed, please open a new support ticket at WPML support forum.