Problem: You are trying to set an ACF called custom_test to be translatable, but when you set it to translate and then edit the field in the post editor, the ACF reverts back to COPY instead of translate. Solution: First, ensure that the field is set to "Translate" instead of "Copy". You can do this by navigating to "Custom fields > Field groups" or by going to "WPML > Settings > Custom Fields Translation" to edit the translation preference for that field. For detailed guidance, visit the WPML documentation on setting translation preferences for ACF fields: https://wpml.org/documentation/related-projects/translate-sites-built-with-acf/#setting-translation-preferences-acf-fields.
If this solution does not resolve your issue or seems outdated, we recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix, and confirming that you have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 problem persists, please open a new support ticket at https://wpml.org/forums/forum/english-support/ for further assistance.
