[Chiuso] ACF Fields on Options Page arent being copied

Dear Support
The website has the following Plugins installed: WPML, Advanced Custom Fields PRO, Advanced Custom Fields Multilingual.
We have created an option page for the admin area with numbers and checkbox fields. The WPML Setting for this field group is set to "Expert mode". We want the values of the numbers and checkbox fields to be copied from the default lanuage to the translated language. So we set the individual translation settings for each of those fields to "Copy".
When changing the value in the default language, the value seems to be copied. The options page shows the new, copied value in the translated language, with a "lock"-icon. But when using the function "get_field('XXX', 'options');" the website returns the previous value in the translated language. The problems persists even after deleting caches.
How can we resolve this issue?