How to get language independent ACF theme options on a WPML site

language-independent-acf-theme-options-output.php

<?php
/**
 * To get this to work, you need to tinker with the acf/settings/ filter and reset the default language
 * so that the get_field() function returns the correct results even when not on the default language.
 * 
 * You can add the filter before you call the get_field() function and then call it again with the current 
 * language to reset it again, so it will affect other pages.
 * 
 * answer courtesy of James of ACF Support
 */

// add this
add_filter( 'acf/settings/current_language', function() {
     global $sitepress;
     return $sitepress->get_default_language();
});

// this is already in your code
$my_field =  get_field( 'my_field', 'option' );

// reset to original language
add_filter( 'acf/settings/current_language', function() {
     return ICL_LANGUAGE_CODE;
});

Kind of tragic that it's not documented since there's so many people trying to solve this via painful methods.

Kind of tragic that it's not documented since there's so many people trying to solve this via painful methods.

👆 this