I have found out that using Divi builder causes randomly double translations and the latter translation contains the whole page-code (loading as "divi/placeholder" -- always at the end of the translation page). Translations won't work at all when this happens. The only work around is to leave the translation content of "divi/placeholder" empty.
From your description, it seems like a known compatibility issue with DIVI.
This issue is solved in the latest version of our plugins and the new posts should not be affected.
To remove the issue from the affected posts, try these steps:
❌ Before proceeding please make a full website backup! ❌
- Go to WPML -> Packages
- Find the packages ending with the affected page's ID (in this case 13575).
- Select only the Gutenberg "Kind" package with that ID number
- Delete that package
Please let me know if this solves the issue or if you need further details.