diff --git a/Classes/Domain/Model/Changes/AbstractStructuralChange.php b/Classes/Domain/Model/Changes/AbstractStructuralChange.php
index f4eb59d5a1..127c08005f 100644
--- a/Classes/Domain/Model/Changes/AbstractStructuralChange.php
+++ b/Classes/Domain/Model/Changes/AbstractStructuralChange.php
@@ -186,15 +186,18 @@ protected function findChildNodes(Node $node): Nodes
 
     protected function isNodeTypeAllowedAsChildNode(Node $node, NodeType $nodeType): bool
     {
-        $subgraph = $this->contentRepositoryRegistry->subgraphForNode($node);
-        if ($node->classification === NodeAggregateClassification::CLASSIFICATION_TETHERED) {
-            $parentNode = $subgraph->findParentNode($node->nodeAggregateId);
-            return !$parentNode || $this->getNodeType($parentNode)->allowsGrandchildNodeType(
-                $node->nodeName->value,
-                $nodeType
-            );
-        } else {
+        if ($node->classification !== NodeAggregateClassification::CLASSIFICATION_TETHERED) {
             return $this->getNodeType($node)->allowsChildNodeType($nodeType);
         }
+
+        $subgraph = $this->contentRepositoryRegistry->subgraphForNode($node);
+        $parentNode = $subgraph->findParentNode($node->nodeAggregateId);
+        $nodeTypeManager = $this->contentRepositoryRegistry->get($node->subgraphIdentity->contentRepositoryId)->getNodeTypeManager();
+
+        return !$parentNode || $nodeTypeManager->isNodeTypeAllowedAsChildToTetheredNode(
+            $this->getNodeType($parentNode),
+            $node->nodeName,
+            $nodeType
+        );
     }
 }
diff --git a/Classes/Fusion/Helper/NodeInfoHelper.php b/Classes/Fusion/Helper/NodeInfoHelper.php
index 62abda3f3c..6de4667f91 100644
--- a/Classes/Fusion/Helper/NodeInfoHelper.php
+++ b/Classes/Fusion/Helper/NodeInfoHelper.php
@@ -11,7 +11,6 @@
  * source code.
  */
 
-use Neos\ContentRepository\Core\Projection\ContentGraph\ContentSubgraphInterface;
 use Neos\ContentRepository\Core\Projection\ContentGraph\Filter\CountAncestorNodesFilter;
 use Neos\ContentRepository\Core\Projection\ContentGraph\Filter\FindChildNodesFilter;
 use Neos\ContentRepository\Core\Projection\ContentGraph\Node;