Don't show failed contacts

src/Model/Contact/Group.php

@@ -82,6 +82,7 @@ class Group
 			   AND NOT `deleted`
 			   AND NOT `blocked`
 			   AND NOT `pending`
+			   AND NOT `failed`
 			   AND `id` NOT IN (
 			   	SELECT DISTINCT(`contact-id`)
 			   	FROM `group_member`

src/Model/Profile.php

@@ -406,6 +406,7 @@ class Profile
 					'pending' => false,
 					'hidden' => false,
 					'archive' => false,
+					'failed' => false,
 					'network' => Protocol::FEDERATED,
 				]);
 			}