Problem: The client is experiencing an issue where YouTube videos displayed using 'Presto Player' disappear in some languages after visitors click on 'Accept all Cookies'. This problem was identified to be associated with WPML after disabling other plugins. Solution: We recommend the following steps to isolate and potentially resolve the issue: 1. Ensure that the 'Video Problem Test' page is translated into all languages on your sandbox site. 2. Switch the theme on your staging site to the default WordPress theme (e.g., Twenty Twenty-Four) and deactivate all third-party plugins except for WPML, Strings Translation, 'Presto Player', and 'Real Cookie Banner'. 3. If the issue does not persist under these conditions, reactivate the original theme and then each plugin one by one. This step-by-step approach will help identify if a specific theme or plugin reintroduces the problem.
If these steps do not resolve the issue or if it appears complex, 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 problem persists, please do not hesitate to open a new support ticket at WPML support forum for further assistance.
