Hi @guerrilladigital
The issue is most likely that the ‘reference’ field is missing from your import.
Can you please read the update_field
documentation and lean more about this reference.
Next, check that your export / import includes this reference information and that both WP installations use the same field_key’s for the field in question.
Perhaps a better method of export / import is to migrate your DB with DB Migrate Pro
Thanks
E