If the same person appears more than once on the Contributor page, the most common cause is that the contributor name was entered differently on different recipes. For example, “Mary Smith,” “Mary A. Smith,” and “Mom” are treated as different names.
Review the contributor names attached to the recipes and standardize them so the same person is identified the same way each time. Then preview the Contributor page again.
If the duplicate comes from two separate contributor accounts rather than recipe-name variations, review the contributor accounts before deleting anything so you do not accidentally remove recipes or access that is still needed.