OpenAi Chat Model Fine-Tuner Error

Hello,

Anyone else aware of this error with the OpenAI Chat Model FIne-Tuner?

WARN  OpenAI Chat Model Fine-Tuner 3:1        Traceback (most recent call last):
  File "C:\Users\ralen\AppData\Local\Programs\knime_5.5.0\plugins\org.knime.python.llm_5.5.0.v202506251651\src\main\python\src\models\openai.py", line 1922, in execute
    training_file: FileObject = self._prepare_training_file(
                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\ralen\AppData\Local\Programs\knime_5.5.0\plugins\org.knime.python.llm_5.5.0.v202506251651\src\main\python\src\models\openai.py", line 2016, in _prepare_training_file
    file = client.files.create(file=open(temp_file_path, "rb"), purpose="fine-tune")
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\ralen\AppData\Local\Programs\knime_5.5.0\bundling\org_knime_python_llm_channel_bin_5.5.0\.pixi\envs\default\Lib\site-packages\openai\resources\files.py", line 118, in create
    return self._post(
           ^^^^^^^^^^^
  File "C:\Users\ralen\AppData\Local\Programs\knime_5.5.0\bundling\org_knime_python_llm_channel_bin_5.5.0\.pixi\envs\default\Lib\site-packages\openai\_base_client.py", line 1239, in post
    return cast(ResponseT, self.request(cast_to, opts, stream=stream, stream_cls=stream_cls))
                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\ralen\AppData\Local\Programs\knime_5.5.0\bundling\org_knime_python_llm_channel_bin_5.5.0\.pixi\envs\default\Lib\site-packages\openai\_base_client.py", line 1034, in request
    raise self._make_status_error_from_response(err.response) from None
openai.UnprocessableEntityError: Error code: 422 - {'detail': [{'type': 'missing', 'loc': ['body', 'files'], 'msg': 'Field required', 'input': None}]}

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\ralen\AppData\Local\Programs\knime_5.5.0\plugins\org.knime.python3.nodes_5.5.0.v202506241445\src\main\python\_node_backend_launcher.py", line 1115, in execute
    outputs = self._node.execute(exec_context, *inputs)
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\ralen\AppData\Local\Programs\knime_5.5.0\plugins\org.knime.python3.nodes_5.5.0.v202506241445\src\main\python\knime\extension\nodes.py", line 1240, in wrapper
    results = func(*args, **kwargs)
              ^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\ralen\AppData\Local\Programs\knime_5.5.0\plugins\org.knime.python.llm_5.5.0.v202506251651\src\main\python\src\models\openai.py", line 1959, in execute
    client.files.delete(training_file.id)  # deletes the tmp file at openai
                        ^^^^^^^^^^^^^
UnboundLocalError: cannot access local variable 'training_file' where it is not associated with a value

ERROR OpenAI Chat Model Fine-Tuner 3:1        Execute failed: cannot access local variable 'training_file' where it is not associated with a value