What am i doing wrong, OnTriggerEnter2D?

I have one game object (with a box collider 2d component and is trigger checked on) that moves with user input. I then have another game object with tag Divider that is stationary and also has a box collider 2d component but without is trigger on. When the two collide, I want limitX to be set to true. However, for some reason it seems the two are not colliding at all. The console does not run anything when I run the game and make the two collide. I have tried all combinations of is trigger being on or off for the game objects and some other things as well but I can't seem to get it to work. Help?

 void OnTriggerEnter2D(Collider2D collider) {
         Debug.Log ("Triggered: " + collider.name); 
 
         if (collider.tag == "Divider") {
             limitX = true;    
         }
 
     }