hts-proportions-calculation step failed because target node expected valid non-empty value in Azure Machine Learning AutoML Many Model HTS Pipeline

Running a hierarchical machine learning (many models) pipeline using azure machine learning service, all my runs are failing due to this last step relating to the hts-proportions-calculation step in which the error logs are showing an error in the python script raising an exception due to an empty node list. I have checked the hts-graph.json for empty node id's but everything seemed to be correct. I have added a screenshot of the job failure as well as the driver logs for the step that is failing, as well as the hts_graph file that it is reading from. Does anyone know why this is failing to run?

AutoML run image showing error

2021/11/28 04:55:06 Got JobInfoJson from env
2021/11/28 04:55:06 Starting App Insight Logger for task:  runTaskLet
2021/11/28 04:55:06 Version: 3.0.01782.0001 Branch: 2021-11-05 Commit: 792fb33
2021/11/28 04:55:06 Attempt 1 of http call to http://10.0.0.5:16384/sendlogstoartifacts/info
2021/11/28 04:55:06 Send process info logs to master server succeeded
2021/11/28 04:55:06 Attempt 1 of http call to http://10.0.0.5:16384/sendlogstoartifacts/status
2021/11/28 04:55:06 Send process info logs to master server succeeded
[2021-11-28T04:55:06.127267] Entering context manager injector.
[2021-11-28T04:55:06.601519] context_manager_injector.py Command line Options: Namespace(inject=['ProjectPythonPath:context_managers.ProjectPythonPath', 'RunHistory:context_managers.RunHistory', 'TrackUserError:context_managers.TrackUserError'], invocation=['proportions_calculation_wrapper.py', '--input-medatadata', '/mnt/batch/tasks/shared/LS_root/jobs/floml/azureml/19e1cffe-093d-41e4-9595-409944b88455/mounts/workspaceblobstore/azureml/112a87e2-76fa-4393-9396-7ba66af77b3c/automl_training', '--hts-graph', '/mnt/batch/tasks/shared/LS_root/jobs/floml/azureml/19e1cffe-093d-41e4-9595-409944b88455/mounts/workspaceblobstore/azureml/04983c1e-6787-4c3e-9355-72c9847fb769/hts_graph'])
Script type = None
[2021-11-28T04:55:06.604909] Entering Run History Context Manager.
[2021-11-28T04:55:08.956959] Current directory: /mnt/batch/tasks/shared/LS_root/jobs/floml/azureml/19e1cffe-093d-41e4-9595-409944b88455/wd/azureml/19e1cffe-093d-41e4-9595-409944b88455
[2021-11-28T04:55:08.958135] Preparing to call script [proportions_calculation_wrapper.py] with arguments:['--input-medatadata', '/mnt/batch/tasks/shared/LS_root/jobs/floml/azureml/19e1cffe-093d-41e4-9595-409944b88455/mounts/workspaceblobstore/azureml/112a87e2-76fa-4393-9396-7ba66af77b3c/automl_training', '--hts-graph', '/mnt/batch/tasks/shared/LS_root/jobs/floml/azureml/19e1cffe-093d-41e4-9595-409944b88455/mounts/workspaceblobstore/azureml/04983c1e-6787-4c3e-9355-72c9847fb769/hts_graph']
[2021-11-28T04:55:08.958160] After variable expansion, calling script [proportions_calculation_wrapper.py] with arguments:['--input-medatadata', '/mnt/batch/tasks/shared/LS_root/jobs/floml/azureml/19e1cffe-093d-41e4-9595-409944b88455/mounts/workspaceblobstore/azureml/112a87e2-76fa-4393-9396-7ba66af77b3c/automl_training', '--hts-graph', '/mnt/batch/tasks/shared/LS_root/jobs/floml/azureml/19e1cffe-093d-41e4-9595-409944b88455/mounts/workspaceblobstore/azureml/04983c1e-6787-4c3e-9355-72c9847fb769/hts_graph']

Loading arguments for scenario proportions-calculation
adding argument --input-medatadata
adding argument --hts-graph
adding argument --enable-event-logger
Input arguments dict is {'--input-medatadata': '/mnt/batch/tasks/shared/LS_root/jobs/floml/azureml/19e1cffe-093d-41e4-9595-409944b88455/mounts/workspaceblobstore/azureml/112a87e2-76fa-4393-9396-7ba66af77b3c/automl_training', '--hts-graph': '/mnt/batch/tasks/shared/LS_root/jobs/floml/azureml/19e1cffe-093d-41e4-9595-409944b88455/mounts/workspaceblobstore/azureml/04983c1e-6787-4c3e-9355-72c9847fb769/hts_graph', '--enable-event-logger': None}
processing: 0b5beeb9-a16f-4b10-8430-8976003d2430_explanation_info.json with type _explanation_info.json.
processing: 0b5beeb9-a16f-4b10-8430-8976003d2430_metadata.csv with type _metadata.csv.
processing: 0b5beeb9-a16f-4b10-8430-8976003d2430_node_columns_info.json with type _node_columns_info.json.
processing: 0b5beeb9-a16f-4b10-8430-8976003d2430_run_info.json with type _run_info.json.
processing: 111f030a-8490-48a9-97ec-4c29064e861c_explanation_info.json with type _explanation_info.json.
processing: 111f030a-8490-48a9-97ec-4c29064e861c_metadata.csv with type _metadata.csv.
processing: 111f030a-8490-48a9-97ec-4c29064e861c_node_columns_info.json with type _node_columns_info.json.
processing: 111f030a-8490-48a9-97ec-4c29064e861c_run_info.json with type _run_info.json.
processing: 155f2b23-02d5-49ac-a251-ac3f1a9212c0_explanation_info.json with type _explanation_info.json.
processing: 155f2b23-02d5-49ac-a251-ac3f1a9212c0_metadata.csv with type _metadata.csv.
processing: 155f2b23-02d5-49ac-a251-ac3f1a9212c0_node_columns_info.json with type _node_columns_info.json.
processing: 155f2b23-02d5-49ac-a251-ac3f1a9212c0_run_info.json with type _run_info.json.
processing: 4162a3c8-e9d2-47a0-961d-3ad746cb1cc9_explanation_info.json with type _explanation_info.json.
processing: 4162a3c8-e9d2-47a0-961d-3ad746cb1cc9_metadata.csv with type _metadata.csv.
processing: 4162a3c8-e9d2-47a0-961d-3ad746cb1cc9_node_columns_info.json with type _node_columns_info.json.
processing: 4162a3c8-e9d2-47a0-961d-3ad746cb1cc9_run_info.json with type _run_info.json.
processing: 6a67bb88-8eee-49dc-ada2-0fe0fefad913_explanation_info.json with type _explanation_info.json.
processing: 6a67bb88-8eee-49dc-ada2-0fe0fefad913_metadata.csv with type _metadata.csv.
processing: 6a67bb88-8eee-49dc-ada2-0fe0fefad913_node_columns_info.json with type _node_columns_info.json.
processing: 6a67bb88-8eee-49dc-ada2-0fe0fefad913_run_info.json with type _run_info.json.
processing: 6d499020-72ca-4210-a154-9718f8d181eb_explanation_info.json with type _explanation_info.json.
processing: 6d499020-72ca-4210-a154-9718f8d181eb_metadata.csv with type _metadata.csv.
processing: 6d499020-72ca-4210-a154-9718f8d181eb_node_columns_info.json with type _node_columns_info.json.
processing: 6d499020-72ca-4210-a154-9718f8d181eb_run_info.json with type _run_info.json.
2021/11/28 04:55:11 Not exporting to RunHistory as the exporter is either stopped or there is no data.
Stopped: false
OriginalData: 1
FilteredData: 0.
processing: 772022a5-d8a6-4ed3-b4ed-f16f3093b480_explanation_info.json with type _explanation_info.json.
processing: 772022a5-d8a6-4ed3-b4ed-f16f3093b480_metadata.csv with type _metadata.csv.
processing: 772022a5-d8a6-4ed3-b4ed-f16f3093b480_node_columns_info.json with type _node_columns_info.json.
processing: 772022a5-d8a6-4ed3-b4ed-f16f3093b480_run_info.json with type _run_info.json.
processing: bdb34cda-8f76-4bd9-b782-a932eca2786c_explanation_info.json with type _explanation_info.json.
processing: bdb34cda-8f76-4bd9-b782-a932eca2786c_metadata.csv with type _metadata.csv.
processing: bdb34cda-8f76-4bd9-b782-a932eca2786c_node_columns_info.json with type _node_columns_info.json.
processing: bdb34cda-8f76-4bd9-b782-a932eca2786c_run_info.json with type _run_info.json.
Unknown file to proceed explanations
processing: explanations with type None.
Unknown file to proceed outputs.txt
processing: outputs.txt with type None.


[2021-11-28T04:55:48.047267] The experiment failed. Finalizing run...
Cleaning up all outstanding Run operations, waiting 900.0 seconds
5 items cleaning up...
Cleanup took 0.006450176239013672 seconds
Traceback (most recent call last):
  File "/mnt/batch/tasks/shared/LS_root/jobs/floml/azureml/19e1cffe-093d-41e4-9595-409944b88455/wd/azureml/19e1cffe-093d-41e4-9595-409944b88455/azureml-setup/context_manager_injector.py", line 243, in execute_with_context
    runpy.run_path(sys.argv[0], globals(), run_name="__main__")
  File "/azureml-envs/azureml_705720c76ff57b57c77d577152dabb18/lib/python3.6/runpy.py", line 263, in run_path
    pkg_name=pkg_name, script_name=fname)
  File "/azureml-envs/azureml_705720c76ff57b57c77d577152dabb18/lib/python3.6/runpy.py", line 96, in _run_module_code
    mod_name, mod_spec, pkg_name, script_name)
  File "/azureml-envs/azureml_705720c76ff57b57c77d577152dabb18/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "proportions_calculation_wrapper.py", line 47, in <module>
    runtime_wrapper.run()
  File "/azureml-envs/azureml_705720c76ff57b57c77d577152dabb18/lib/python3.6/site-packages/azureml/train/automl/runtime/_many_models/automl_pipeline_step_wrapper.py", line 63, in run
    self._run()
  File "/azureml-envs/azureml_705720c76ff57b57c77d577152dabb18/lib/python3.6/site-packages/azureml/train/automl/runtime/_hts/proportions_calculation.py", line 44, in _run
    proportions_calculation(self.arguments_dict, self.event_logger, script_run=self.step_run)
  File "/azureml-envs/azureml_705720c76ff57b57c77d577152dabb18/lib/python3.6/site-packages/azureml/train/automl/runtime/_hts/proportions_calculation.py", line 208, in proportions_calculation
    get_proportions_metadata_json(proportions_data, graph),
  File "/azureml-envs/azureml_705720c76ff57b57c77d577152dabb18/lib/python3.6/site-packages/azureml/train/automl/runtime/_hts/proportions_calculation.py", line 111, in get_proportions_metadata_json
    graph.get_leaf_node_name_list(row)).node_id
  File "/azureml-envs/azureml_705720c76ff57b57c77d577152dabb18/lib/python3.6/site-packages/azureml/train/automl/runtime/_hts/hts_graph.py", line 304, in get_node_by_name_list_raise_none
    Contract.assert_non_empty(node, "node", ReferenceCodes._HTS_GRAPH_GET_NODE_NAME_LIST_NOT_NONE)
  File "/azureml-envs/azureml_705720c76ff57b57c77d577152dabb18/lib/python3.6/site-packages/azureml/automl/core/shared/_diagnostics/contract.py", line 120, in assert_non_empty
    log_safe=log_safe,
  File "/azureml-envs/azureml_705720c76ff57b57c77d577152dabb18/lib/python3.6/site-packages/azureml/automl/core/shared/_diagnostics/contract.py", line 51, in assert_true
    ).with_generic_msg(log_safe_exception_message)
azureml.automl.core.shared.exceptions.InvalidOperationException: InvalidOperationException:
    Message: Assertion Failed. Invalid Operation. Target: node. Reference Code: 9c7a19f2-017a-4f38-8617-c81f427c6fea. Details: Expected argument node to have a valid and non-empty value.
    InnerException: None
    ErrorResponse 
{
    "error": {
        "code": "SystemError",
        "message": "Encountered an internal AutoML error. Error Message/Code: InvalidOperationException. Additional Info: InvalidOperationException:\n\tMessage: Assertion Failed. Invalid Operation. Target: node. Reference Code: 9c7a19f2-017a-4f38-8617-c81f427c6fea. Details: Expected argument node to have a valid and non-empty value.\n\tInnerException: None\n\tErrorResponse \n{\n    \"error\": {\n        \"message\": \"Assertion Failed. Invalid Operation. Target: node. Reference Code: 9c7a19f2-017a-4f38-8617-c81f427c6fea. Details: Expected argument node to have a valid and non-empty value.\",\n        \"target\": \"node\",\n        \"reference_code\": \"9c7a19f2-017a-4f38-8617-c81f427c6fea\"\n    }\n}",
        "details_uri": "https://aka.ms/automltroubleshoot",
        "target": "node",
        "inner_error": {
            "code": "ClientError",
            "inner_error": {
                "code": "AutoMLInternal"
            }
        },
        "reference_code": "9c7a19f2-017a-4f38-8617-c81f427c6fea"
    }
}

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "proportions_calculation_wrapper.py", line 47, in <module>
    runtime_wrapper.run()
  File "/azureml-envs/azureml_705720c76ff57b57c77d577152dabb18/lib/python3.6/site-packages/azureml/train/automl/runtime/_many_models/automl_pipeline_step_wrapper.py", line 63, in run
    self._run()
  File "/azureml-envs/azureml_705720c76ff57b57c77d577152dabb18/lib/python3.6/site-packages/azureml/train/automl/runtime/_hts/proportions_calculation.py", line 44, in _run
    proportions_calculation(self.arguments_dict, self.event_logger, script_run=self.step_run)
  File "/azureml-envs/azureml_705720c76ff57b57c77d577152dabb18/lib/python3.6/site-packages/azureml/train/automl/runtime/_hts/proportions_calculation.py", line 208, in proportions_calculation
    get_proportions_metadata_json(proportions_data, graph),
  File "/azureml-envs/azureml_705720c76ff57b57c77d577152dabb18/lib/python3.6/site-packages/azureml/train/automl/runtime/_hts/proportions_calculation.py", line 111, in get_proportions_metadata_json
    graph.get_leaf_node_name_list(row)).node_id
  File "/azureml-envs/azureml_705720c76ff57b57c77d577152dabb18/lib/python3.6/site-packages/azureml/train/automl/runtime/_hts/hts_graph.py", line 304, in get_node_by_name_list_raise_none
    Contract.assert_non_empty(node, "node", ReferenceCodes._HTS_GRAPH_GET_NODE_NAME_LIST_NOT_NONE)
  File "/azureml-envs/azureml_705720c76ff57b57c77d577152dabb18/lib/python3.6/site-packages/azureml/automl/core/shared/_diagnostics/contract.py", line 120, in assert_non_empty
    log_safe=log_safe,
  File "/azureml-envs/azureml_705720c76ff57b57c77d577152dabb18/lib/python3.6/site-packages/azureml/automl/core/shared/_diagnostics/contract.py", line 51, in assert_true
    ).with_generic_msg(log_safe_exception_message)
UserScriptException: UserScriptException:
    Message: Assertion Failed. Invalid Operation. Target: node. Reference Code: 9c7a19f2-017a-4f38-8617-c81f427c6fea. Details: Expected argument node to have a valid and non-empty value.
    InnerException InvalidOperationException:
    Message: Assertion Failed. Invalid Operation. Target: node. Reference Code: 9c7a19f2-017a-4f38-8617-c81f427c6fea. Details: Expected argument node to have a valid and non-empty value.
    InnerException: None
    ErrorResponse 
{
    "error": {
        "code": "SystemError",
        "message": "Encountered an internal AutoML error. Error Message/Code: InvalidOperationException. Additional Info: InvalidOperationException:\n\tMessage: Assertion Failed. Invalid Operation. Target: node. Reference Code: 9c7a19f2-017a-4f38-8617-c81f427c6fea. Details: Expected argument node to have a valid and non-empty value.\n\tInnerException: None\n\tErrorResponse \n{\n    \"error\": {\n        \"message\": \"Assertion Failed. Invalid Operation. Target: node. Reference Code: 9c7a19f2-017a-4f38-8617-c81f427c6fea. Details: Expected argument node to have a valid and non-empty value.\",\n        \"target\": \"node\",\n        \"reference_code\": \"9c7a19f2-017a-4f38-8617-c81f427c6fea\"\n    }\n}",
        "details_uri": "https://aka.ms/automltroubleshoot",
        "target": "node",
        "inner_error": {
            "code": "ClientError",
            "inner_error": {
                "code": "AutoMLInternal"
            }
        },
        "reference_code": "9c7a19f2-017a-4f38-8617-c81f427c6fea"
    }
}
    ErrorResponse 
{
    "error": {
        "code": "UserError",
        "message": "Assertion Failed. Invalid Operation. Target: node. Reference Code: 9c7a19f2-017a-4f38-8617-c81f427c6fea. Details: Expected argument node to have a valid and non-empty value.",
        "target": "node",
        "reference_code": "9c7a19f2-017a-4f38-8617-c81f427c6fea"
    }
}

[2021-11-28T04:55:48.133625] Finished context manager injector with Exception.
2021/11/28 04:55:51 Skipping parsing control script error. Reason: Error json file doesn't exist. This most likely means that no errors were written to the file. File path: /mnt/batch/tasks/workitems/9101132f-0f3e-44cc-9963-6e5c59581961/job-1/19e1cffe-093d-41e4-9_e524f491-340a-4a5c-92a4-d69803a7e3c2/wd/runTaskLetTask_error.json
2021/11/28 04:55:51 Wrapper cmd failed with err: exit status 1
2021/11/28 04:55:51 Attempt 1 of http call to http://10.0.0.5:16384/sendlogstoartifacts/status
2021/11/28 04:55:51 Send process info logs to master server succeeded
2021/11/28 04:55:51 mpirun version string: {
mpirun (Open MPI) 3.1.2

Report bugs to http://www.open-mpi.org/community/help/
}
2021/11/28 04:55:51 Not exporting to RunHistory as the exporter is either stopped or there is no data.
Stopped: false
OriginalData: 2
FilteredData: 0.
2021/11/28 04:55:51 Process Exiting with Code:  1
2021/11/28 04:55:51 All App Insights Logs was sent successfully or the close timeout of 10 was reached

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