ble central example button not working with da14531evz module

static void configure_alert_button() {
    wkupct_register_callback(app_button_press_cb);

    arch_printf("configure_alert_button");

    wkupct_enable_irq(WKUPCT_PIN_SELECT(GPIO_BUTTON_PORT, GPIO_BUTTON_PIN), // select pin (GPIO_BUTTON_PORT, GPIO_BUTTON_PIN)
                      WKUPCT_PIN_POLARITY(GPIO_BUTTON_PORT, GPIO_BUTTON_PIN, WKUPCT_PIN_POLARITY_LOW), // polarity low
                      1, // 1 event
                      0x3F); // debouncing time = 63
}

static void app_button_press_cb() {
    arch_printf("app_button_press_cb");
    configure_alert_button();
}