Ticket #62606: 62606-echo.diff

src/wp-admin/async-upload.php

@@ -128 +128 @@
                 ),
                 esc_html( $id->get_error_message() )
         );
-        wp_admin_notice(
+        echo wp_get_admin_notice(
                 $message,
                 array(
                         'additional_classes' => array( 'error-div', 'error' ),