I have such script:

  private void OnTriggerEnter(Collider other)
  {
    if (triggered == 0)
    {
      Highlight();
    }
    ++trigerred;
  }

  internal void OnTriggerExit(Collider other)
  {
    --triggered;
    if (triggered == 0)
    {
      Dehighlight();
    }
  }

After objects were triggered and another of them was destroyed OnTriggerExit() of current object isn't invoked and object remains highlighted. Why so?