update

Civi/DataProcessor/FieldOutputHandler/RelationshipsFieldOutputHandler.php

@@ -257,7 +257,7 @@ class RelationshipsFieldOutputHandler extends AbstractFieldOutputHandler {
     $form->add('hidden', 'sorted_relationship_types', null, ['id' => 'sorted_relationship_types']);
     // Backwords compatibilty
     $form->assign('useSortIcon', false);
-    if (version_compare(CRM_Utils_System::version(), '5.15', '<')) {
+    if (version_compare(\CRM_Utils_System::version(), '5.15', '<')) {
       $form->assign('useSortIcon', true);
     }
 

templates/CRM/Dataprocessor/Form/DataProcessor.tpl

@@ -46,7 +46,7 @@
     <div class="content">{$form.is_active.html}</div>
     <div class="clear"></div>
   </div>
-  {if $data_processor_id}
+  {if $data_processor_id && $sortFields && count($sortFields)}
   <div class="crm-section">
     <div class="label">{ts}Default Sort{/ts}</div>
     <div class="content">