[Risolto] Media

Background of the issue:
I have translated my website to English. The media isn't appearing in the English version. I tried to reassign the same image with media translate but still no luck. It works for 24 hours and then the issue repeats. I have around 500 elements in French and 900 elements in English. If I look at the media in English, I can't find certain media from the French version. I need to resolve it ASAP. Link to a page where the issue can be seen: link nascosto

Symptoms:
Some files are missing in the English version of the website. The media appears for 24 hours and then disappears.

Questions:
Why isn't the media appearing in the English version of my website?
Why does the media disappear after 24 hours?
How can I ensure that all media from the French version is available in the English version?