Only 1 of 3 conditions being executed in IF statement?(Solved)

This one got me confused. Why is only the 3rd part of the IF statement being executed ?

 void OnTriggerEnter (Collider other) 
     {    
         if (other.tag == "Shot")
         {
             Destroy(other.gameObject);
             Instantiate(invaderExplosion, transform.position, transform.rotation);
             Destroy(gameObject);
         }
 
 

It obviously recognises the projectile(Shot) otherwise the trigger wouldn't destroy the object as in part 3 of the IF statement. So why then does it not destroy the 'Shot' or play/instantiate my effect.

???