Background of the issue:
I am trying to export data to a file, translate it externally, and then upload the document back to the site so that the blog post is translated.
Symptoms:
After uploading the translated document, I cannot edit it with the WPML editor. All data is missing from translations, making it impossible to edit data translated externally.
Questions:
Why can't I edit the translated document with the WPML editor after uploading it?
How can I ensure that the data is not missing from translations when editing externally translated content?