Why i cant press(use) joystick and gui button at the same time ????

Hi, In order to make the button clickable while moving with the joystick you need to manage the multi touch with TouchCount in the Update(), here a sample:

void Update()

if(Input.touchCount > 0){

 for(int i = 0;i<Input.touchCount;i++){
             
 Touch touch = Input.GetTouch(i);
 if(touch.phase == TouchPhase.Began && buttonRect.Contains(new Vector2( touch.position.x,Screen.height - touch.position.y))){ // or hitTest if it's a gui texture

//here you write the code you want to execute

 }
             
  }
             

} }