Hotfix: SchematicSelector

SpigotCore_Main/src/de/steamwar/inventory/SchematicSelector.java

@@ -163,7 +163,7 @@ public class SchematicSelector {
         }
         if(!singleDirOpen) {
             if(NodeMember.getNodeMember(parent.getId(), user.getId()) != null) {
-                return Optional.ofNullable(SchematicNode.byIdAndUser(user, parent.getId())).flatMap(SchematicNode::getOptionalParent).map(integer -> SchematicNode.byIdAndUser(user, integer)).orElse(null);
+                return NodeMember.getNodeMember(parent.getId(), user.getId()).getParent().map(integer -> SchematicNode.byIdAndUser(user, integer)).orElse(null);
             } else {
                 return getParent(parent).orElse(null);
             }