Instance record detailed view. Contributors are not displayed

Overview: Instance record with contributor data, when viewed in the edit form, does not display contributor data in the detailed view.

Steps to Reproduce:

1. Log into some FOLIO snapshot stable http://folio-snapshot-stable.aws.indexdata.com/ and login to Inventory
2. Search for e.g. Title 'arctic'.
3. Click on a title with contributor names in the result list (2nd pane)

Expected Results: Contributor name(s) will be displayed in the accordion Contributor

Actual Results: Contributors does not display, but if viewing the instance record in the edit form, then these data is in there.