The snippets below show the duplicate contacts, the webform CiviCRM tab, and the matching rules. If I fill in name & a matching email the form updates the contact, does not create a dup. If I supply name & a matching phone the duplicate shows up. The Civi and Drupal logs don't show anything related. Thoughts?
Civi v5.24.3, Drupal v7.69, PHP v7.1.14, MySQL v5.6.41-84.1, Webform v7.x-4.22, Webform CiviCRM v7.x-4.28.