[Risolto] Slugs of translated posts show 404

Background of the issue:
Translate pages but changing the slug to match the original page under the translated languages slug shows a 404. The moment the slug differs slightly it works. For example main URL is link nascosto -> translated page is link nascosto which shows a 404. If I change the slug slightly then the page works.

Symptoms:
404 page when matching the URL to the parent one (under the language sub pages ie main-domain/NEW LANGUAGE/page)

Questions:
Please help with fixing