[Resolved] Theme settings not working after WPML update

Please make sure to delete all field groups from the German and Italian versions completely. Simply disabling them won’t be enough—please remove them from the trash as well.

Once they are deleted, go to:
hidden link

Then, set the following options:

- Options Pages (acf-ui-options-page)
- Field Groups (acf-field-group)

Set both to "Not translatable," as we should have only one version of each field group.

Regarding the missing data, I see that these fields are now empty. Unfortunately, due to improper translation settings for both the field groups and theme options, I can't determine when they were deleted.

At this point, the only options are to manually re-create and translate them, or if possible, restore the website to a previous state before these changes were made. This would allow us to review the setup and update our plugins in a testing environment.

I get "Error: The username support is not registered on this site" again.

Can you recreate this user?

Can you show me an example of this?

But still, when I'm looking at theme settings in secondary language I see values of default language (in the site pages I see correct values), and then if I save it the default language values will be saved! what can I do?

Screenshots would help.

For the second question, did you consider something like this:
https://wpml.org/wpml-hook/wpml_admin_make_post_duplicates/

so e.g.

function custom_wpml_set_duplicate_permalink($post_id) {
    // Ensure we're not in an autosave routine
    if (defined('DOING_AUTOSAVE') && DOING_AUTOSAVE) {
        return;
    }

    // Check if this is a WPML duplicate
    $is_duplicate = get_post_meta($post_id, '_wpml_duplicate', true);

    if (!$is_duplicate) {
        return;
    }

    // Get the original post ID
    $original_post_id = apply_filters('wpml_object_id', $post_id, get_post_type($post_id), false, wpml_get_default_language());

    if (!$original_post_id) {
        return;
    }

    // Get the original post's slug
    $original_post = get_post($original_post_id);
    $original_slug = $original_post->post_name;

    if ($original_slug) {
        // Update the duplicated post's slug to match the original
        remove_action('save_post', 'custom_wpml_set_duplicate_permalink'); // Prevent infinite loop
        wp_update_post([
            'ID' => $post_id,
            'post_name' => $original_slug
        ]);
        add_action('save_post', 'custom_wpml_set_duplicate_permalink'); // Re-add after update
    }
}
add_action('save_post', 'custom_wpml_set_duplicate_permalink');

I haven't tested this though and if the above does not work, we can cover it (for our support rules) in another ticket.