How to fix broken combo animation?

     //attacks
     if (Input.GetKeyDown(KeyCode.Mouse0) && comboIndex < comboParams.Length && stamina > 5) {
         isAttacking = true;

         anim.SetTrigger (comboParams [comboIndex]);
         if (comboIndex > 1)
             anim.ResetTrigger (comboParams [comboIndex - 1]);

         //comboIndex++;

         comboIndex = (comboIndex + 1) % comboParams.Length;
         myStats.Fatigue (8);

         resetTimer = 0f;
     }

     if (comboIndex > 0) {
         resetTimer += Time.deltaTime;
     }

     if (resetTimer > fireRate) {
         anim.SetTrigger ("Reset");
         anim.ResetTrigger ("Attack1");
         anim.ResetTrigger ("Attack2");
         anim.ResetTrigger ("Attack3");

         comboIndex = 0;

         isAttacking = false;
     }

i got this from a forum and when I tried it it worked great. however, while 'testing' the game and spamming the button, i realized that the triggers would sometimes stay active and the other animations wouldnt play. Heres how the animator is set.

![alt text][1]

The animation would often get stuck at the third stab animation whenever I spam the attack button. [1]: /storage/temp/114947-untitled.png