Hello @alessandro.scandone,
Thanks for reaching out to us.
This might happen when the master ref isn't queried. Can you confirm that you're querying the master ref?
The master ref is updated as soon as you make a new publication. If you get and query your documents with the most up-to-date ref, you should be able to get the latest version of the content.
I recommend you follow our dedicated article: Changes in Prismic not appearing on your website .
Let me know if you need further assistance.
Thanks,
Racheal.