IsPointerOverGameObject doesn't work on my android

Hi, I have a little issue about the Input System on Android.

My player should turn towards the last touch. But i only want him to turn if the touch isn't on an UI Element.

For this i've searched the internet and come to this.

But my player turns towards the touch even if it's on a Button. Why?

 if (Input.touchSupported)
 {
     foreach (Touch touch in Input.touches)
     {
         if (EventSystem.current.IsPointerOverGameObject(touch.fingerId))
             return;
         float dx = transform.position.x - Camera.main.ScreenToWorldPoint(touch.position).x;
         float dy = transform.position.y - Camera.main.ScreenToWorldPoint(touch.position).y;
     }
 }
 transform.eulerAngles = new Vector3(0f, 0f, Mathf.Atan2(dy, dx) * Mathf.Rad2Deg + 180);