Segmentation Fault: 11 - simulation unable to initialize and run

[EthanIrby8]

Context

I have a NEURON-based python program that uses various compiled .mod files to build a network.
The program is unable to run once it hits these code lines at the end of the program:
h.finitialize(-65)
h.continuerun(100)

At the first run of the program, the result of the execution is a segmentation fault error: Segmentation Fault: 11.
The second run of the program does not give a segmentation fault error and instead does not print anything and continues to run indefinitely until VSCode stops the program.

I have tried using the nrniv -debug command to check for any version incompatibilities or under-the-hood runtime errors. The command shows that the .mod files were compiled though an error with importing a method from multiprocessing appears.
I have attached the stacktrace below. Let me know if you would like to see the mod files or any additional code/information.

NEURON setup

• Version: NEURON==8.2.6
• Installation method: pip
• macOS
• mod files compiled using the command: nrnivmodl

[nrnhines]

As far as I know, -debug is not a valid argument to nrniv. It is being treated as a HOC file and hence can't open -debug.
I'm guessing that test_nigo_pathway.py contains python code that make use of multiprocessing support. If that is the case, it is probably best to launch python test_nigo_pathway.py as it seems more likely that python multiprocessing support will work.