Python while loop in curses module problem

Question

so I'm trying to make an app in the module just to introduce myself to it and I'm having this little problem. It's a menu where you have multiple options to choose. When you choose an option called Functions it should clear the screen and show sort of a sub menu. That works but when I'm trying to navigate in that menu the app just refreshes and goes back to the old menu. I think I know where the problem is, it's just I don't know how to solve it, I'll begin. So I have a class called Functions where are the functions. It looks like this

class Functions:

    global menu
    menu = ['Functions', 'About', 'Exit']
    def print_menu(stdscr, selected_row_idx):
        
        stdscr.clear()
        text = "0xR"
        h, w = stdscr.getmaxyx()

        for idx, row in enumerate(menu):
            x = w//2 - len(row)//2
            y = h//2 - len(menu)//2 + idx
            xLogo = w//2 - len(text)//2
            stdscr.addstr(10, xLogo, text)

            if idx == selected_row_idx:
                stdscr.attron(curses.color_pair(1))
                stdscr.addstr(y,x, row)
                stdscr.attroff(curses.color_pair(1))
            else:
                stdscr.addstr(y,x, row)

        stdscr.refresh()

    def print_about(stdscr):
        stdscr.clear()
        h, w = stdscr.getmaxyx()
        info = ["raven", "blahblahblah"]
        for idx, row in enumerate(info):
            x = w//2 - len(row)//2
            y = h//2 - len(info)//2 + idx
            stdscr.attron(curses.color_pair(2))
            stdscr.addstr(y,x, row)
            stdscr.attroff(curses.color_pair(2))

        stdscr.refresh()

    def funcs(stdscr, functions_current_row_idx):
        stdscr.clear()
        list_of_functions = ['Option1', 'Option2', 'Option3']
        h, w = stdscr.getmaxyx()
        for idx, row in enumerate(list_of_functions):
            x = w//2 - len(row)//2
            y = h//2 - len(list_of_functions)//2 + idx

            if idx == functions_current_row_idx:
                stdscr.attron(curses.color_pair(1))
                stdscr.addstr(y,x, row)
                stdscr.attroff(curses.color_pair(1))
            else:
                stdscr.addstr(y,x, row)

        stdscr.refresh()

the first function called print_menu is the main function that displays the main menu to you it has a list named menu where are the options to choose from then outside of that class I have the main method

def main(stdscr):
    
    curses.curs_set(0)
    curses.init_pair(1, curses.COLOR_BLACK, curses.COLOR_WHITE)
    curses.init_pair(2, curses.COLOR_MAGENTA, curses.COLOR_BLACK)

    current_row_idx = 0
    functions_current_row_idx = 0

    is_in_funcs = False
    while 1:
        is_in_funcs = False
        key = stdscr.getch()
        stdscr.clear()

        
        if is_in_funcs == False:

            if key == curses.KEY_UP and current_row_idx > 0:
                current_row_idx -= 1
            elif key == curses.KEY_DOWN and current_row_idx < len(menu)-1:
                current_row_idx += 1
            elif key == curses.KEY_ENTER or key in [10,13]:
                if current_row_idx == len(menu)-1:
                    sys.exit()
                elif current_row_idx == 1:
                    Functions.print_about(stdscr)
                elif current_row_idx == 0:
                    is_in_funcs = True
                    Functions.funcs(stdscr, functions_current_row_idx)
                stdscr.refresh()
                stdscr.getch()
                
            Functions.print_menu(stdscr, current_row_idx)
        elif is_in_funcs == True:
            if key == curses.KEY_UP and current_row_idx > 0:
                functions_current_row_idx -= 1
            elif key == curses.KEY_DOWN and current_row_idx < len(menu)-1:
                functions_current_row_idx += 1
            elif key == curses.KEY_ENTER or key in [10,13]:
                stdscr.refresh()
                stdscr.getch()
            Functions.funcs(stdscr, functions_current_row_idx)

        stdscr.refresh()

and here goes the problem because in the main() method there is a while loop, everytime you move with your arrow keys, it refreshes changes the row highlight I tried making a boolean called is_in_funcs = False so everytime it checks if the bool is False and if it is it will refresh the original menu

if is_in_funcs == False:

            if key == curses.KEY_UP and current_row_idx > 0:
                current_row_idx -= 1
            elif key == curses.KEY_DOWN and current_row_idx < len(menu)-1:
                current_row_idx += 1
            elif key == curses.KEY_ENTER or key in [10,13]:
                if current_row_idx == len(menu)-1:
                    sys.exit()
                elif current_row_idx == 1:
                    Functions.print_about(stdscr)
                elif current_row_idx == 0:
                    is_in_funcs = True
                    Functions.funcs(stdscr, functions_current_row_idx)
                stdscr.refresh()
                stdscr.getch()

and if you noticed, there is an if statement

elif current_row_idx == 0:
                    is_in_funcs = True
                    Functions.funcs(stdscr, functions_current_row_idx)

when you're on a certain number of the list and hit enter, it takes you to the new menu and it also changes the is_in_funcs to True then it calls the function funcs in Functions class with the parameters then I made new if statement if the is_in_funcs is False

elif is_in_funcs == True:
            if key == curses.KEY_UP and current_row_idx > 0:
                functions_current_row_idx -= 1
            elif key == curses.KEY_DOWN and current_row_idx < len(menu)-1:
                functions_current_row_idx += 1
            elif key == curses.KEY_ENTER or key in [10,13]:
                stdscr.refresh()
                stdscr.getch()
            Functions.funcs(stdscr, functions_current_row_idx)

and I have no idea why it doesn't work. I mean, it's probably because the bool resets and goes back to False, but I don't know how to fix that. I would really appreciate any kind of help ^-^