From cf7b06c0f3d8bf0cd9b23cf9dbd0ddcafff66381 Mon Sep 17 00:00:00 2001
From: balibabu <cike8899@users.noreply.github.com>
Date: Wed, 17 Jun 2026 19:07:04 +0800
Subject: [PATCH] Fix: A pipeline created from a template fails immediately
 upon execution with a "hierarchy does not exist" error. (#16151)

### What problem does this PR solve?

Fix: A pipeline created from a template fails immediately upon execution
with a "hierarchy does not exist" error.
---
 web/src/pages/agent/form/title-chunker-form/index.tsx | 1 +
 web/src/pages/agent/utils.ts                          | 4 ++--
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/web/src/pages/agent/form/title-chunker-form/index.tsx b/web/src/pages/agent/form/title-chunker-form/index.tsx
index 5cc8efcd23..1e56df20c3 100644
--- a/web/src/pages/agent/form/title-chunker-form/index.tsx
+++ b/web/src/pages/agent/form/title-chunker-form/index.tsx
@@ -71,6 +71,7 @@ export enum TitleChunkerRulesField {
 
 export type TitleChunkerFormSchemaType = z.infer<typeof FormSchema> & {
   rules: z.infer<typeof rulesSchema>;
+  hierarchy: string;
 };
 
 type LevelItemProps = {
diff --git a/web/src/pages/agent/utils.ts b/web/src/pages/agent/utils.ts
index 5ae01936e7..06832ae85f 100644
--- a/web/src/pages/agent/utils.ts
+++ b/web/src/pages/agent/utils.ts
@@ -364,9 +364,9 @@ function transformTitleChunkerParams(params: TitleChunkerFormSchemaType) {
   );
 
   const hierarchyValue =
-    params.method === TitleChunkerMethod.Group
+    (params.method === TitleChunkerMethod.Group
       ? params.hierarchyGroup
-      : params.hierarchyHierarchy;
+      : params.hierarchyHierarchy) ?? params.hierarchy;
 
   return {
     ...omit(params, [