diff --git a/web/src/hooks/use-knowledge-request.ts b/web/src/hooks/use-knowledge-request.ts
index 5b58a258fb..e88c7828bb 100644
--- a/web/src/hooks/use-knowledge-request.ts
+++ b/web/src/hooks/use-knowledge-request.ts
@@ -1075,7 +1075,7 @@ export const useSelectTestingResult = (): ITestingResult => {
       return mutation.state.data;
     },
   });
-  return (data.at(-1) ?? {
+  return (data.filter((x) => x !== undefined).at(-1) ?? {
     chunks: [],
     documents: [],
     total: 0,
@@ -1109,7 +1109,7 @@ export const useAllTestingResult = (): ITestingResult => {
       return mutation.state.data;
     },
   });
-  return (data.at(-1) ?? {
+  return (data.filter((x) => x !== undefined).at(-1) ?? {
     chunks: [],
     documents: [],
     total: 0,
diff --git a/web/src/pages/next-search/hooks.ts b/web/src/pages/next-search/hooks.ts
index 33c86716a9..61e023000d 100644
--- a/web/src/pages/next-search/hooks.ts
+++ b/web/src/pages/next-search/hooks.ts
@@ -149,7 +149,6 @@ export const useTestChunkRetrieval = (
     mutateAsync,
   } = useMutation({
     mutationKey: ['testChunk'], // This method is invalid
-    gcTime: 0,
     mutationFn: async (values: any) => {
       const { data } = await retrievalTestFunc({
         page,
@@ -200,7 +199,6 @@ export const useTestChunkAllRetrieval = (
     mutateAsync,
   } = useMutation({
     mutationKey: ['testChunkAll'], // This method is invalid
-    gcTime: 0,
     mutationFn: async (values: any) => {
       const { data } = await retrievalTestFunc({
         page,