From e783563f7d4d8404a2e3ff1abef2f320b6a5916f Mon Sep 17 00:00:00 2001
From: David Siegfried <david.siegfried@uni-vechta.de>
Date: Wed, 4 Mar 2026 16:14:11 +0000
Subject: Use the correct array index, fixes #6328

Closes #6328

Merge request studip/studip!4797
---
 lib/models/Courseware/Instance.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/models/Courseware/Instance.php b/lib/models/Courseware/Instance.php
index 63f5fab..9595ffa 100644
--- a/lib/models/Courseware/Instance.php
+++ b/lib/models/Courseware/Instance.php
@@ -593,8 +593,8 @@ class Instance
 
         $data = [];
         foreach ($statement as $row) {
-            $structuralElementId = $row['structural_element_id'];
-            unset($row['structural_element_id']);
+            $structuralElementId = $row['id'];
+            unset($row['id']);
 
             if (!isset($data[$structuralElementId])) {
                 $data[$structuralElementId] = [];
-- 
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