win10 -- ctrl-c causes error "forrtl: error (200): program aborting due to control-C event"

[alexiscatnip]

Task: I am trying to open the camera, detect the charuco points, and display it using opencv. In a simple main loop.

When I press the stop button in pycharm (which i assume is ctrl-c), I ran into this error message --

forrtl: error (200): program aborting due to control-C event
Image              PC                Routine            Line        Source             
libifcoremd.dll    00007FF8BE5D3B58  Unknown               Unknown  Unknown
KERNELBASE.dll     00007FF91B3B4F93  Unknown               Unknown  Unknown
KERNEL32.DLL       00007FF91C337974  Unknown               Unknown  Unknown
ntdll.dll          00007FF91E3FA2F1  Unknown               Unknown  Unknown

-- at this point, pycharm is unable to kill the application. The only way to proceed is to kill and restart pycharm.

The culprit is narrowed down to the import of CharucoBoard class:

import time

from aniposelib.boards import CharucoBoard  # <-- this import, even if the code does not use it, causes the error message.
from bin.api.SynchronisedCameraCapture import SynchronisedCameraCapture
import cv2