[Resolved] ACF Extended Dynamic Preview not working on WPML non-primary language with the Advanced Custom Field...

Background of the issue:
I am trying to resolve an issue with ACF Extended Dynamic Preview not working on WPML non-primary language with the Advanced Custom Field Multilingual plugin.

This is a follow-up on this issue (which I can't reopen): https://wpml.org/forums/topic/acf-extended-dynamic-preview-not-working-on-wpml-non-primary-language-with-the-advanced-custom-field/.

Here is a repeat of the workaround you provided, for convenience.

function wpml_translate_acf_post_id_compsupp_7448($preload, $post_id) {
// If the post ID is already set by previous filters, return it
if ($preload !== null) {
return $preload;
}

// Check if WPML is active and the post ID is set
if ( function_exists('wpml_object_id') && $post_id ) {
// Get the post type for the given post ID
$post_type = get_post_type($post_id);

// If a post type is found, apply the WPML filter to get the translated ID
if ( $post_type ) {
return apply_filters('wpml_object_id', $post_id, $post_type, true);
}
}

// Return the original post ID if no translation is needed or possible
return $post_id;
}
add_filter('acf/pre_load_post_id', 'wpml_translate_acf_post_id_compsupp_7448', 100, 2);

Symptoms:
The workaround provided has a few issues.
1. Dynamic previews often use acf to load to site-wide options, using get_field('[field-name]', 'option')... this no longer works inside a dynamic preview.
2. Translated texts loaded with __(...) do not render in the correct language inside the dynamic preview.

I can reproduce these problems on a new sandbox at your request (since the old sandbox is expired).

Questions:
Why are calls to get_field('[field-name]', 'option') not working inside the dynamic preview?
Why do translated texts loaded with __(...) not render in the correct language inside the dynamic preview?