This thread is resolved. Here is a description of the problem and solution.
Problem:
The client encountered an issue with strings that are indicated as Italian but are actually in English, coming from the Theme.
Solution:
We advised the client that plugins and themes typically use English as the default language for strings. If the incorrect strings are not visible on the frontend, they can be ignored. However, to change the source language of a string or string domain, we recommended navigating to WPML >> String Translation. We provided a step-by-step guide on how to change the source language of strings, which can be found in our documentation:
https://wpml.org/documentation/getting-started-guide/string-translation/how-to-change-the-source-language-of-strings/
Please note that the solution provided might be irrelevant due to being outdated or not applicable to your specific case. If the issue persists, 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 you still need assistance, please open a new support ticket with us.
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This topic is split from https://wpml.org/forums/topic/translated-post-type-does-not-show-the-translation/