I have 'options' in my theme that are made up of advance custom field 'Field Groups'. I can add them to or remove them from pages in my site via a toggle.
If I go into the options and specify "All languages" I can see two versions of each option that is available, one for french and one for english. However if I enter copy into one of the french fields, it gets copied into the English fields as well after I save the edit.
You can see this on my home page if you scroll to the bottom and look at "Accepted at more than 1,800 ....." There is a 'fr' in front of the text on both the English and French versions of the page, because the french content overwrites the english content. Not sure what I a missing in my setup, can you advise?
The workaround felt like a lot of trouble to me, although thank you very much for suggesting it. I ended up doing a brute force sort of solution with a few additional custom fields for translation purposes. So I am all set. Thanks for your help.