diff --git a/apps/manager/flow.py b/apps/manager/flow.py
index 26a19670e988c62e09a528fff48d4efcb5a5d994..9677eb68763820ad04e4e35c8cc607f5c3b4f95e 100644
--- a/apps/manager/flow.py
+++ b/apps/manager/flow.py
@@ -23,9 +23,9 @@ from apps.manager.node import NodeManager
 from apps.models.mongo import MongoDB
 from apps.scheduler.pool.loader.app import AppLoader
 from apps.scheduler.pool.loader.flow import FlowLoader
-from apps.manager.node import NodeManager
 from apps.utils.flow import generate_from_schema
 
+
 class FlowManager:
     """Flow相关操作"""
 
@@ -482,14 +482,14 @@ class FlowManager:
             for flows in metadata.flows:
                 if flows.id == flow_id:
                     flows.debug = debug
-            app_loader = AppLoader()
-            await app_loader.save(metadata, app_id)
             flow_loader = FlowLoader()
             flow = await flow_loader.load(app_id, flow_id)
             if flow is None:
                 return False
             flow.debug = debug
             await flow_loader.save(app_id=app_id,flow_id=flow_id,flow=flow)
+            app_loader = AppLoader()
+            await app_loader.save(metadata, app_id)
             return True
         except Exception as e:
             LOGGER.error(f"Update flow debug from app pool failed: {e!s}")
diff --git a/apps/routers/mock.py b/apps/routers/mock.py
index 72af6eb3cee2aadd6ec44241cd89320dc79688ee..9081486052c384d7d06a44a6717b84972a89f740 100644
--- a/apps/routers/mock.py
+++ b/apps/routers/mock.py
@@ -3,6 +3,7 @@
 Copyright (c) Huawei Technologies Co., Ltd. 2023-2024. All rights reserved.
 """
 
+import copy
 import json
 import random
 import time
@@ -383,8 +384,11 @@ async def mock_data(
                             sample_output["content"] = {"message": "<StreamAnswerResponse>"}
                         if "content" in sample_output and isinstance(sample_output["content"], dict):
                             for key, value in sample_output["content"].items():
-                                params[key] = value
+                                params[key] = copy.deepcopy(value)
                         time.sleep(sample_output["metadata"]["time_cost"])
+                        if sample_output["flow"]["stepName"] == "知识库":
+                            for i in range(len(sample_output["content"]["chunk_list"])):
+                                sample_output["content"]["chunk_list"][i] = sample_output["content"]["chunk_list"][i][:100] + "..."
                         yield "data: " + json.dumps(sample_output, ensure_ascii=False) + "\n\n"
                         now_flow_item = edge.edge_to