[Closed] Changing ACF flexible content in default language changes content in translation

I am trying to:
Modify the order of ACF flexible content of the default language (English) version of a page

Link to a page where the issue can be seen:
hidden link
hidden link

I expected to see:
Content for the translated versions of the page should not change

Instead, I got:
Some ACF fields in the translations lose their values and as a result two of the columns in the "Ceci peut également vous intéresser" module are lost

We’ve encountered an issue where changing ACF flexible content fields in the original language has unexpected consequences in all the translated versions of pages.

There seem to be many things which trigger this but in this case I've moved the embedded video above the "Fair facts & figures" three column module in the English page and the result is that all other translations of the "You may also be interested in:" three column module lose values for some of their fields.

We’re using wpml_cf_preferences values of 2 (translate) for text fields and 3 (copy once) for all other fields like clones, images and selects etc. We’d expect that making changes which don’t involve text fields on the original page should not have any effect on the translated pages.