diff --git a/wp-admin/includes/class-wp-site-health.php b/wp-admin/includes/class-wp-site-health.php
index dd58d93b4e..de698d7a30 100644
--- a/wp-admin/includes/class-wp-site-health.php
+++ b/wp-admin/includes/class-wp-site-health.php
@@ -2207,6 +2207,15 @@ class WP_Site_Health {
 		 */
 		$tests = apply_filters( 'site_status_tests', $tests );
 
+		// Ensure that the filtered tests contain the required array keys.
+		$tests = array_merge(
+			array(
+				'direct' => array(),
+				'async'  => array(),
+			),
+			$tests
+		);
+
 		return $tests;
 	}
 
diff --git a/wp-includes/version.php b/wp-includes/version.php
index e484198fb9..67c86d0acc 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.6-alpha-48802';
+$wp_version = '5.6-alpha-48808';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.