[Resuelto] The translated pages aren't visible in the

Background of the issue:
I am working on a site under development and I fixed an issue with the translations getting stuck at the 'in progress' phase. I want to add the translated pages to the menu of the translated (Dutch) version of my website.

Symptoms:
The translated pages aren't visible in the 'appearance' > 'menu' structure of the translated version of my website.

Questions:
How can I make the translated pages available to add to the menu in the translated version of my website?