Pause menu not called when ESC pressed

Hello everyone!

For my first project I am trying to create a simple PAUSE menu. Once per frame there is a check if ESC is pressed. If yes, than it sets boolean value to true, toggles off Canvas 1 (UI) and toggles on Canvas 2 (pause menu) with multiple buttons. If then ESC is pressed again it reverses the changes (1 on, 2 off, false).

The buttons already work, but the pressing of ESC does nothing. If I manually toggle on Canvas 2 it does toggle off when pressing ESC though.

Thank you in advance for any advice!

Code below: using System.Collections; using System.Collections.Generic; using UnityEngine; using UnityEngine.SceneManagement;

public class MainMenu : MonoBehaviour { bool pausedGame = false; public GameObject CanvasA; public GameObject CanvasB;

 // Start is called before the first frame update
 void Start()
 {
     CanvasA.gameObject.SetActive(false); //Toggle off when starting
 }

 // Update is called once per frame
 void Update()
 {
     if (Input.GetKeyDown("escape"))
     {
         if (!pausedGame) 
         {
             pausedGame = true;
             CanvasA.gameObject.SetActive(true);
             CanvasB.gameObject.SetActive(false);
         }
         else
         {
             pausedGame = false;
             CanvasA.gameObject.SetActive(false);
             CanvasB.gameObject.SetActive(true);
         }
     }
 }

 void OnContinueButton()
 {
     CanvasA.gameObject.SetActive(false);
     CanvasB.gameObject.SetActive(true);
 }

 void OnRestartButton()
 {
     SceneManager.LoadScene(SceneManager.GetActiveScene().buildIndex);
 }

 void OnMainMenuButton()
 {
     SceneManager.LoadScene(0);
 }

 void OnQuitButton()
 {
     Application.Quit();
 }

}