Hello,
I am trying to use clone_items for ArcGIS API for Python.  I am trying to clone a map to another AGOL folder which should copy the map and all dependent items to the specified folder.  This works for other maps in my content but it is failing for the specific map I need to copy today.  Does anyone know why this would be failing?  I get the following error(s).
Traceback (most recent call last):
 File "C:\Users\xxx\AppData\Local\Programs\Python\Python37-32\lib\site-packages\arcgis\_impl\common\_clone.py", line 1913, in clone
 self._add_features(new_layers, relationships, layer_field_mapping, feature_service.properties['spatialReference'])
 File "C:\Users\xxx\AppData\Local\Programs\Python\Python37-32\lib\site-packages\arcgis\_impl\common\_clone.py", line 1281, in _add_features
 object_id_mapping[layer_id] = {layer_features['attributes'][object_id_field] : add_results['objectId'] for i in range(0, len(layer_features))}
 File "C:\Users\xxx\AppData\Local\Programs\Python\Python37-32\lib\site-packages\arcgis\_impl\common\_clone.py", line 1281, in <dictcomp>
 object_id_mapping[layer_id] = {layer_features['attributes'][object_id_field] : add_results['objectId'] for i in range(0, len(layer_features))}
IndexError: list index out of range
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
 File "r:\GIS_Warehouse\Production\Projects\CVRP\Scripts\promoteAGOL.py", line 107, in <module>
 main()
 File "r:\GIS_Warehouse\Production\Projects\CVRP\Scripts\promoteAGOL.py", line 92, in main
 successItems = ag.content.clone_items(cloneArray, folder=promoteFolder, search_existing_items=False)
 File "C:\Users\xxx\AppData\Local\Programs\Python\Python37-32\lib\site-packages\arcgis\gis\__init__.py", line 4034, in clone_items
 return deep_cloner.clone()
 File "C:\Users\xxx\AppData\Local\Programs\Python\Python37-32\lib\site-packages\arcgis\_impl\common\_clone.py", line 676, in clone
 results = executor.submit(self._clone, executor).result()
 File "C:\Users\xxx\AppData\Local\Programs\Python\Python37-32\lib\concurrent\futures\_base.py", line 432, in result
 return self.__get_result()
 File "C:\Users\xxx\AppData\Local\Programs\Python\Python37-32\lib\concurrent\futures\_base.py", line 384, in __get_result
 raise self._exception
 File "C:\Users\xxx\AppData\Local\Programs\Python\Python37-32\lib\concurrent\futures\thread.py", line 57, in run
 result = self.fn(*self.args, **self.kwargs)
 File "C:\Users\xxx\AppData\Local\Programs\Python\Python37-32\lib\site-packages\arcgis\_impl\common\_clone.py", line 663, in _clone
 raise ex
 File "C:\Users\xxx\AppData\Local\Programs\Python\Python37-32\lib\concurrent\futures\thread.py", line 57, in run
 result = self.fn(*self.args, **self.kwargs)
 File "C:\Users\xxx\AppData\Local\Programs\Python\Python37-32\lib\site-packages\arcgis\_impl\common\_clone.py", line 1922, in clone
 raise _ItemCreateException("Failed to create {0} {1}: {2}".format(original_item['type'], original_item['title'], str(ex)), new_item)
arcgis._impl.common._clone._ItemCreateException: ('Failed to create Feature Service xxx: list index out of range', <Item title:"xxx" type:Feature Layer Collection owner:xxx>)