diff --git a/samplelib/PackedFaceset.py b/samplelib/PackedFaceset.py
index 96525d5..57895c3 100644
--- a/samplelib/PackedFaceset.py
+++ b/samplelib/PackedFaceset.py
@@ -136,6 +136,7 @@ class PackedFaceset():
         samples_configs = pickle.loads ( f.read(sizeof_samples_bytes) )
         samples = []
         for sample_config in samples_configs:
+            sample_config = pickle.loads(pickle.dumps (sample_config))            
             samples.append ( Sample (**sample_config) )
 
         offsets = [ struct.unpack("Q", f.read(8) )[0] for _ in range(len(samples)+1) ]
diff --git a/samplelib/SampleHost.py b/samplelib/SampleHost.py
index 17aefbe..25f35d6 100644
--- a/samplelib/SampleHost.py
+++ b/samplelib/SampleHost.py
@@ -1,6 +1,5 @@
 import multiprocessing
 import operator
-import pickle
 import traceback
 from pathlib import Path
 
@@ -66,9 +65,6 @@ class SampleHost:
                 if sample_type == SampleType.FACE_TEMPORAL_SORTED:
                     result = SampleHost.upgradeToFaceTemporalSortedSamples(result)
 
-                result_dumped = pickle.dumps(result)
-                del result
-                result = pickle.loads(result_dumped)
                 samples[sample_type] = mp_utils.ListHost(result)
 
             list_host = samples[sample_type]