diff --git a/src/handler/utils.ts b/src/handler/utils.ts
index 1f541641..c1c1228d 100644
--- a/src/handler/utils.ts
+++ b/src/handler/utils.ts
@@ -5,9 +5,10 @@ import { ManyQueryResponse, ManyResponse, StatusExecution } from './types';
  * @ignore
  */
 export const chunkArray = (list, size) => {
+  const clonedList = [...list];
   const results: any = [];
-  while (list.length) {
-    results.push(list.splice(0, size));
+  while (clonedList.length) {
+    results.push(clonedList.splice(0, size));
   }
   return results;
 };
@@ -15,7 +16,7 @@ export const chunkArray = (list, size) => {
 /**
  * @ignore
  */
-function* processBatch(items, fn, metadata, extra, options): IterableIterator<StatusExecution> {
+function* processBatch(items, fn, metadata, extra, options): IterableIterator<Promise<StatusExecution>> {
   const clonedItems = [...items];
   for (const items of clonedItems) {
     yield fn(items, metadata, extra, options)
@@ -31,14 +32,18 @@ export const batchProcessQueue =
   <T = any>(metadata: ModelMetadata) =>
   async (items: unknown[], fn: unknown, extra: Record<string, unknown> = {}, options: any = {}, throttle = 100) => {
     const chunks = chunkArray([...items], throttle);
-    const chunkPromises = chunks.map((data) => Promise.resolve(data));
     const result: ManyResponse<T> = { success: 0, match_number: items.length, errors: [], data: [] };
-    for await (const chunk of chunkPromises) {
-      for await (const r of processBatch(chunk, fn, metadata, extra, options)) {
+    for (const chunk of chunks) {
+      const promises: Promise<StatusExecution>[] = [];
+      for (const promise of processBatch(chunk, fn, metadata, extra, options)) {
+        promises.push(promise);
+      }
+      const batchResults = await Promise.all(promises);
+      for (const r of batchResults) {
         if (r.status === 'FAILURE') {
           result.errors.push(r);
         } else {
-          result.success = result.success + 1;
+          result.success += 1;
           if (r.payload) {
             result.data?.push(r.payload as T);
           }