[Resolved] ACF Relationship field order not persisting in translated language (WPML + ACF Pro)

We are using WordPress with ACF Pro and WPML.

We have an ACF Relationship field named:

posts_to_display_in_grid

The field allows multiple post types (not fixed to a single CPT)

The related post types (e.g. People, Stories, etc.) are translatable

The field translation preference in WPML is set to Copy

Default language: English

Secondary language: French

Expected Behavior

The relationship field order should be managed from English (default language)

The same order should appear:

in the French backend

on the French frontend

French translations should inherit the English relationship field values when set to Copy

Actual Behavior

When the relationship order is changed and saved in English:

The order is correctly updated

The updated order is reflected in French backend

When attempting to reorder or remove items in French and clicking Update:

The changes do not persist

The relationship field reverts back to the English order after save

On the frontend (French):

Looping directly over the ACF Relationship field does not preserve order

Order differs from what is selected in the backend