Problem: The client is unable to switch from the Dutch version to the French version on the homepage of their multilingual site using the WPML language switcher. The switcher works on other pages but not on the Dutch homepage. Solution: We recommend trying the following steps to identify and resolve the issue: 1. Deactivate all plugins except for WPML CMS. 2. Temporarily switch to a default WordPress theme, such as Twenty Twenty-One. 3. Check if the language switcher issue on the homepage is resolved. Please ensure to back up your database before performing these steps. The issue was caused by the cache in the "Object Cache Pro" plugin.
If this solution does not resolve your issue or seems outdated, please visit our known issues page and check for any related issues. Also, verify that you have the latest versions of themes and plugins installed. If the problem persists, we highly recommend opening a new support ticket with us for further assistance.