[Resolved] Manually translated content in Cornerstone overwrites content on secondary language

Problem:
The client was experiencing an issue where manually translated content in Cornerstone was overwriting content on the secondary language.

Solution:
We advised the client to update all outdated plugins and themes, especially WPML-related plugins. To update WPML plugins, the client needed to:
1. Go to the 'Commercial' tab in the 'Add New' section of the 'Plugins' menu.
2. Unregister WPML from the site if the registration key didn't match.
3. Remove the actual site from their WPML account.
4. Register the site again with the correct key.
After updating the plugins, we asked the client to check if the issue persisted by creating a new test page. When the issue was still present, we requested authorization to run tests and eventually escalated the issue to our 2nd tier support team.

Our 2nd tier specialists provided a workaround, which can be found on the following errata page: https://wpml.org/errata/cornerstone-content-replaced-by-original-values-when-translating-pages-via-native-editor/.

Please note that this solution might be outdated or not applicable to your case. If the issue persists, 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 necessary, please open a new support ticket for further assistance.