Fix LP export to PDF see BT#9559

main/newscorm/learnpath.class.php

@@ -9498,6 +9498,7 @@ EOD;
         $lp_id = intval($lp_id);
         $files_to_export = array();
         $course_data = api_get_course_info($this->cc);
+        $sessionId = api_get_session_id();
         if (!empty($course_data)) {
             $scorm_path = api_get_path(SYS_COURSE_PATH).$course_data['path'].'/scorm/'.$this->path;
 
@@ -9509,6 +9510,10 @@ EOD;
                         case 'document':
                             //Getting documents from a LP with chamilo documents
                             $file_data = DocumentManager::get_document_data_by_id($item->path, $this->cc);
+                            // Try loading document from the base course.
+                            if (empty($file_data) && !empty($sessionId)) {
+                                $file_data = DocumentManager::get_document_data_by_id($item->path, $this->cc, false, 0);
+                            }
                             $file_path = api_get_path(SYS_COURSE_PATH).$course_data['path'].'/document'.$file_data['path'];
                             if (file_exists($file_path)) {
                                 $files_to_export[] = array('title'=>$item->get_title(),'path'=>$file_path);