[Geschlossen] ACF Option page fields do not get copied

Background of the issue:
I have an options page with a field for a logo and a repeater field. Inside the ACF field group they are called 'logo' and 'font'. I have two languages, German and English, with German as the default. In the German language, the options page is fully filled with data. I want the English options page to copy all this data without any possible translations. The field group is set to 'Same fields in all languages'. In WPML settings, I cannot see the ACF fields at all under 'translate custom fields'. Adding them manually to the wpml-config.xml and setting them to copy did not work either.

Symptoms:
ACF Option page fields do not get copied.

Questions:
Why are the ACF fields not appearing under 'translate custom fields' in WPML settings?
How can I ensure that the English options page copies all data from the German options page without any translations?
Is there a specific step I am missing in the WPML documentation for copying ACF option page fields?