No input detected after a while

Hi, I was playing around with the new Input System Package and after I tried to make a singleton implementation of the system, it stopped detecting any input whatsoever. I tried to make a private variable of my MasterInput class (the generated one) and assign it a new value in the Awake() function. It still doesn't work.

It seems like I have the same issue as this user here.

After enabling Event Diagnostics, nothing appeared in the console.

Here is my code:

Code (CSharp):

1. public MasterControls con;
2. private void Awake()
3. {
4.      con = new MasterControls();
5.      con.Player.Shoot.performed += ShootPressed;
6. }
7.  
8. private void ShootPressed(UnityEngine.InputSystem.InputAction.CallbackContext obj)
9. {
10.      Debug.Log("We've shot!");
11. }