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Problem:
The client reported an issue with WPML where after translating Polish course content and working with translated menus, the menu system broke. The English menu and language switcher continued to function correctly, but in Polish, Danish, and Slovenian, the header only displayed the logo/site title/search icon, with menu items and the language switcher missing. The footer language switcher appeared only in English. Despite attempts like checking translated menus, running WPML Menus Sync, and clearing cache, the issue persisted.

Solution:
We investigated the issue and found that the Slovenian menu was not saving correctly, which could indicate a plugin/theme conflict, custom code interference, or database inconsistency. We used WPML troubleshooting tools to clean up leftover translation data and synchronize the menu relationships. After these steps, the Slovenian menu saved successfully and changes persisted. We recommended the client manually edit each menu in its respective language, arrange the menu items, pages, and order as desired, and not run menu sync since custom menu links were used.

If this solution does not resolve your issue, or if it seems outdated or irrelevant to your case, we highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix,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 problems persist, please open a new support ticket at WPML support forum.

Problem:
The client reported that the language switcher was missing from the output HTML when Tutor LMS Pro was enabled, despite the server returning a clean HTTP Status 200 for both the default root and localized directory roots like /pl/.
Solution:
We identified an issue with the language switcher when Tutor LMS is active. Our 2nd Tier team investigated and provided a temporary workaround by adding specific code to the functions.php file. Here is the code you can use:

// WPML workaround for wpmltriage-4168<br />add_filter( 'icl_ls_languages', 'wpmltriage4168_snapshot_ls_languages', 9 );<br />add_filter( 'icl_ls_languages', 'wpmltriage4168_restore_ls_languages', 11 );<br /><br />function wpmltriage4168_snapshot_ls_languages( $languages ) {<br />    if ( is_array( $languages ) && $languages ) {<br />        wpmltriage4168_ls_languages_snapshot( $languages );<br />    }<br />    return $languages;<br />}<br /><br />function wpmltriage4168_restore_ls_languages( $languages ) {<br />    $snapshot = wpmltriage4168_ls_languages_snapshot();<br />    if ( empty( $languages ) && ! empty( $snapshot ) ) {<br />        return $snapshot;<br />    }<br />    return $languages;<br />}<br /><br />function wpmltriage4168_ls_languages_snapshot( $set = null ) {<br />    static $snapshot = array();<br />    if ( null !== $set ) {<br />        $snapshot = $set;<br />    }<br />    return $snapshot;<br />}

This solution is a temporary fix while we report the issue to the Tutor LMS authors for a permanent resolution in future updates.

Please note that this solution might be irrelevant if it's 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 the issue persists, please open a new support ticket.

Problem:
The client reported issues with WPML on a WordPress site with Tutor LMS, where menus were incorrectly displaying in multiple languages, language switchers were disappearing or malfunctioning, and courses were being altered unexpectedly.
Solution:
We advised the client to focus on one issue at a time, starting with the menu problems. The steps included:
1. Deleting all unnecessary menus in the default language (English) and other languages.
2. Ensuring only the required menus are kept and then translating these menus using WPML.
3. Checking the front end to ensure that the menus display correctly after translation.
We also suggested handling the Tutor LMS course issues in a separate ticket to keep the troubleshooting process clear and organized.
If this solution does not apply to your situation, or if it seems outdated, we recommend opening a new support ticket. We also 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. For further assistance, please visit our support forum at https://wpml.org/forums/forum/english-support/.