A recurring error when running the MPS simulator

[yaelbh]

I have code that runs the MPS simulator. Execution of this code sometimes results in this error:

  File "/root/miniforge3/envs/env5/lib/python3.11/site-packages/qiskit_aer/jobs/utils.py", line 38, in _wrapper
    return func(self, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/root/miniforge3/envs/env5/lib/python3.11/site-packages/qiskit_aer/jobs/aerjob.py", line 96, in result
    return self._future.result(timeout=timeout)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/root/miniforge3/envs/env5/lib/python3.11/concurrent/futures/_base.py", line 456, in result
    return self.__get_result()
           ^^^^^^^^^^^^^^^^^^^
  File "/root/miniforge3/envs/env5/lib/python3.11/concurrent/futures/_base.py", line 401, in __get_result
    raise self._exception
  File "/root/miniforge3/envs/env5/lib/python3.11/concurrent/futures/thread.py", line 58, in run
    result = self.fn(*self.args, **self.kwargs)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/root/miniforge3/envs/env5/lib/python3.11/site-packages/qiskit_aer/backends/aerbackend.py", line 474, in _execute_circuits_job
    output = self._execute_circuits(aer_circuits, noise_model, config)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/root/miniforge3/envs/env5/lib/python3.11/site-packages/qiskit_aer/backends/aer_simulator.py", line 906, in _execute_circuits
    ret = cpp_execute_circuits(self._controller, aer_circuits, noise_model, config)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/root/miniforge3/envs/env5/lib/python3.11/site-packages/qiskit_aer/backends/backend_utils.py", line 446, in cpp_execute_circuits
    return controller.execute(aer_circuits, noise_model, config)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xb6 in position 1067: invalid start byte