Why is this Raycast not casting a ray?

I have the ray casting in a project that has nothing but it won't even get to the Casted ray debug line.

Weird thing is it actually did work like once out of a thousand clicks.

Here is the code that was working in another project but ever since I've tried to move it no rays are being cast.

 void FixedUpdate(){
     
     MouseClickedTarget ();
 }

 void MouseClickedTarget ()
 {
     //Input.GetMouseButtonDown
     if (Input.GetMouseButton(0)) 
     {
         Ray ray = new Ray(Camera.main.ScreenToWorldPoint( Input.mousePosition), Camera.main.transform.forward);
         RaycastHit hit;
         
         if(Physics.Raycast(ray, out hit, 100))
         {

             Debug.Log("Casted ray");
             
             if(hit.collider)
             {                    
                 if(hit.collider.gameObject.tag == "target")
                 {

                 }
             }
         }//if(Physics.Raycast(ray, out hit, 100))
         else
         {
             Debug.Log("No ray cast!");
         }
     }
 }//void MouseClickedTarget ()