Encounter OSError when trying to transform h5 files into step format.

[Scalcium]

** WorkSession : Sending all data
Step File could not be created : ../proj_log/result_1/results/test_latest_step\test_latest\00000797_vec.step
Traceback (most recent call last):
File "E:\Liu\DeepCAD-master\utils\export2step.py", line 81, in
write_step_file(out_shape, save_path)
File "C:\Users\admin.conda\envs\deepcad2\lib\site-packages\OCC\Extend\DataExchange.py", line 184, in write_step_file
raise IOError("Error while writing shape to STEP file.")
OSError: Error while writing shape to STEP file.

However, visualization process in show.py is successful.