daveR-5

Problem:
You are facing issues with ACF Extended Dynamic Preview not working correctly in WPML's non-primary languages. Specifically, calls to

get_field('[field-name]', 'option')

do not function as expected in dynamic previews, and translated texts using

__(...)

do not render in the correct language.
Solution:
This behavior is expected due to the admin language being different from the current (secondary) language. WPML loads strings in the admin language by default. When you enable or disable the preview, the plugin performs an AJAX request to render the preview, during which the string gets translated by ACF Extended. To resolve this, go to your user profile and select the 'Set admin language as editing language' option. With this setting enabled, the strings should translate correctly.

If this solution does not resolve your issue, or if it seems outdated or irrelevant to your specific case, we recommend opening a new support ticket. Additionally, 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. For further assistance, please visit our support forum at WPML Support Forum.