Strange behaviour of subprocess.run when using python-mip and CBC binary

[IlyaShaternik]

Hi everyone.
I've encountered strange behavior which I'm not sure how to deal with. So I'm using python-mip library to generate .mps files. I solve those .mps files using different solvers. I have some modification of Coin-or-CBC which I compiled and intended to use in my python code with subprocess.run like so:

subprocess.run([r'D:\work\CBC-test\build\ppp1'], shell=True)

The problem is if I create python-mip mip.Model object anywhere in my code before calling subprocess.run, the call to subprocess.run fails without any error message.
So this fails:

import mip
import subprocess

if __name__ == '__main__':    
    m = mip.Model(sense='MIN', name='WHATEVER', solver_name='CBC')
    subprocess.run([r'D:\work\CBC-test\build\ppp1'], shell=True)

while this works:

import mip
import subprocess

if __name__ == '__main__':    
    subprocess.run([r'D:\work\CBC-test\build\ppp1'], shell=True)

I've tried to call some other unrelated .exe files and they work without any problem. So I created the following simple executable:

#include "CbcModel.hpp"
#include "CbcSolver.hpp"

int main()
{
    OsiClpSolverInterface lp_solver;   
    std::cout << "Hello there" << std::endl;
}

And if I call it with subprocess.run after creating mip.Model object, it fails.

Edit:
For building my CBC related executables I don't use CBC that comes with python-mip. I compile static libraries from source.