Image dissappearing when assigning fill amount

Hello,

I have a standard circular "ammo bar" under my UI canvas that i want to track and follow the amount of ammo i have left defined in my gamemaster script

The problem is that once I fire, subtracting the ammo by 1... the fill amount goes to 0 and the image dissapears. I've checked the math, and debugged the values in realtime... they print fine... but for some reason the fill amount just goes to zero once i fire the first bullet. Heres my code applied to directly to the image under canvas:

     public static Image ammoCounter;
 
     private GameObject gm;
 
     void Start () {
 
         ammoCounter = GetComponent<Image>();
 
         gm = GameObject.FindGameObjectWithTag("gamemaster");
 
     }
     
     void FixedUpdate () {
 
         ammoCounter.fillAmount = gm.GetComponent<gamemaster>().foodAmmo / 50;
 
         print(gm.GetComponent<gamemaster>().foodAmmo);
 
     }
 }
 

my food ammo value in gamemaster is assigning fine... I assign it to 50 in the inspector.

Any help?