Unity2D - OnTriggerEnter2D not working

This was working honestly, 10 minutes ago. Then I closed and reloaded it my triggers weren't triggering.

I wan't to have a trigger whenever the player walks over a 'portal'.

The portal is just a sprite with a capsule collider 2d with 'Is Trigger' checked.

The player has a rigidBody2D and colliders as well.

The portal script is attached to the portal.

Player Inspector Portal Inspector Portal Code

 public class PortalScript : MonoBehaviour {
 
     // Use this for initialization
     void Start () {
 
     }
     
     // Update is called once per frame
     void Update () {
         
     }
 
     void OnTriggerEnter2D(Collider2D coll) {
         Debug.Log ("collided with the portal");
     }
 }
 

Am I missing something completely obvious?