diff --git a/nifi/user-scripts/cogstack_cohort_generate_data.py b/nifi/user-scripts/cogstack_cohort_generate_data.py
index 22612219..c0100427 100644
--- a/nifi/user-scripts/cogstack_cohort_generate_data.py
+++ b/nifi/user-scripts/cogstack_cohort_generate_data.py
@@ -181,11 +181,14 @@ def process_annotation_records(annotation_records: list, _doc2ptt: dict):
 with Pool(processes=CPU_THREADS) as patient_process_pool:
     results = list()
 
+    rec_que = Queue()
+
     record_chunks = list(chunk(input_patient_record_data, CPU_THREADS))
 
     counter = 0
     for record_chunk in record_chunks:
-        patient_process_pool_results.append(patient_process_pool.starmap_async(process_patient_records, [(record_chunk,)], chunksize=1, error_callback=logging.error))
+        rec_que.put(record_chunk)
+        patient_process_pool_results.append(patient_process_pool.starmap_async(process_patient_records, [(rec_que.get(),)], chunksize=1, error_callback=logging.error))
         counter += 1
 
     try:
@@ -207,11 +210,14 @@ def process_annotation_records(annotation_records: list, _doc2ptt: dict):
 with Pool(processes=CPU_THREADS) as annotations_process_pool:
     results = list()
 
+    rec_que = Queue()
+
     record_chunks = list(chunk(input_annotations, CPU_THREADS))
 
     counter = 0
     for record_chunk in record_chunks:
-        annotation_process_pool_results.append(annotations_process_pool.starmap_async(process_annotation_records, [(record_chunk, doc2ptt )], chunksize=1, error_callback=logging.error))
+        rec_que.put(record_chunk)
+        annotation_process_pool_results.append(annotations_process_pool.starmap_async(process_annotation_records, [(rec_que.get(), doc2ptt )], chunksize=1, error_callback=logging.error))
         counter += 1
 
     try: