Paolo Sax

Problem:
You are trying to save data on an ACF option page in various languages using ACFML, with fields set as 'copy' to maintain the same values across all languages. While the backend shows values correctly copied and locked, the frontend still displays values from the main language (Italian). Even after updating the value in the main language, you need to manually update it in each secondary language to reflect changes on the frontend.
Solution:
The behavior you're experiencing is expected when using ACF fields with the copy translation preference. To apply these values to the secondary languages on the frontend, you must re-save the options page in those languages. This process is necessary to ensure consistency across languages as currently implemented by WPML and ACFML. For more details, you can refer to our documentation here: Translating the ACF Options Page Custom Fields with WPML.
If this manual update process is cumbersome, we can submit a feature request to explore the possibility of automatically copying the options page values into the secondary languages upon saving the default language options page. Please let us know if you would like us to proceed with this request.

Please note that this solution might be outdated or not applicable to your specific case. We highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix, and confirming that you have installed the latest versions of themes and plugins. If the issue persists, please open a new support ticket at WPML support forum.