export_orientations_HDF5 no longer working #576

===
Run ID:        0
Task:          0 ('sample_orientations_from_CRC_file_mtex')
Element:       0
Iteration:     0
Loop index:    LoopIndex()
Action:        2 ('<<script:mtex/sample_orientations_CRC.m>>')

Traceback (most recent call last):
  File "/home/mbexegc2/projects/lightform/iterative_sample_mtex/matflow-gui/.venv/lib/python3.13/site-packages/hpcflow/sdk/core/utils.py", line 1178, in redirect_std_to_file
    yield fp
  File "/home/mbexegc2/projects/lightform/iterative_sample_mtex/matflow-gui/.venv/lib/python3.13/site-packages/hpcflow/sdk/core/workflow.py", line 4883, in _execute_run
    self.set_EAR_end(
    ~~~~~~~~~~~~~~~~^
        block_act_key=block_act_key,
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        run=run,
        ^^^^^^^^
        exit_code=ret_code,
        ^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "/home/mbexegc2/projects/lightform/iterative_sample_mtex/matflow-gui/.venv/lib/python3.13/site-packages/hpcflow/sdk/log.py", line 146, in wrapper
    return func(*args, **kwargs)
  File "/home/mbexegc2/projects/lightform/iterative_sample_mtex/matflow-gui/.venv/lib/python3.13/site-packages/hpcflow/sdk/core/workflow.py", line 3210, in set_EAR_end
    run._param_save("script", block_act_key, run_dir)
    ~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/mbexegc2/projects/lightform/iterative_sample_mtex/matflow-gui/.venv/lib/python3.13/site-packages/hpcflow/sdk/core/actions.py", line 1254, in _param_save
    param_cls.save_from_HDF5_group(
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
        h5_grp, param_id, self.workflow
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "/home/mbexegc2/projects/lightform/matflow/matflow/param_classes/orientations.py", line 300, in save_from_HDF5_group
    zarr.copy(
    ~~~~~~~~~^
        source=group["data"],
        ^^^^^^^^^^^^^^^^^^^^^
    ...<2 lines>...
        if_exists="replace",
        ^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "/home/mbexegc2/projects/lightform/iterative_sample_mtex/matflow-gui/.venv/lib/python3.13/site-packages/zarr/convenience.py", line 874, in copy
    _check_dest_is_group(dest)
    ~~~~~~~~~~~~~~~~~~~~^^^^^^
  File "/home/mbexegc2/projects/lightform/iterative_sample_mtex/matflow-gui/.venv/lib/python3.13/site-packages/zarr/convenience.py", line 745, in _check_dest_is_group
    raise ValueError(f"dest must be a group, got {dest!r}")
ValueError: dest must be a group, got None