Particle System for gun fire effect won't replay after first fire

Hey guys, I'm currently designing a top-down shooter and I have a particle system that I'm using for the gun being fired that simply creates a burst of orangish-red particles at the beginning of the system. For some reason, the first time my character fires I get the effect, but every subsequent time the effect doesn't play.

Here is my code:

 void FixedUpdate()
 {
     //Movement code

     bool firing = Input.GetMouseButtonDown(0);
     if (firing && !isSprinting)
     {
         if (!fireEffect.isPlaying)
         {
             fireEffect.Play();
         }
         anim.SetBool("Firing", true);
     }
     else
     {
         if (fireEffect.time >= fireEffect.startLifetime && fireEffect.isPlaying)
         {
             fireEffect.Stop();
             fireEffect.Clear();
             fireEffect.time = 0.0f;
         }
         anim.SetBool("Firing", false);
     }
 }

and here are the settings of the Particle System in the inspector:

I have tried tweaking the settings using different combinations of setting the playback time and using Stop() and Pause(), but I just can't seem to get it to work. What am I doing wrong?