Unable to exit program

I am working on a large C++ (console) project that has multiple menus (1 main menus with 4 options, and each of those options as additional options or menus).

The int main() module simply calls the "MainMenu()" option, which has 5 options to choose from - 4 options to go to other menus, and 1 option to "Exit the progam". If I choose to exit the program before going to any other menu, the program will exit, but as soon as another menu option is chosen, the program will not exit.

I have no...

Unable to exit program