All Translated Pages aren’t showing in Backend Page Editor

Hi,
We have a site with 3 languages.
I’ve added another page x 3 (1 page in 3 languages)
The language is set on each one and works

However, when on the page and trying to switch to a different language, it goes to a different page.
I’m trying to set it in the backend of the page (right hand area that shows the 2 other languages and the dropdown to select the corresponding page in the other language)
However, the page isn’t showing up for one of the languages.
For one language it’s ok, but for the second, the page doesn’t appear.
I’ve refreshed many times and tried different browsers (it’s also been more than a week).

The theme is Divi
And the pages were cloned from a previous page (which when changing language, is defaulting to). I’m wondering if this is the issue.

Any ideas?

Thanks