How come Arduino Nicla Sense ME can't read quaternions?

Official Hardware Nicla Family Nicla Sense ME
1

Hi. I've been playing around with the arduino nicla sense me and all the sensors. I have been able to read data from all of the sensors, but I haven't been able to read the quaternions. They just show up as zeros. Any suggestions? I'm using the code from the cheat sheet that looks like this:

#include "Arduino_BHY2.h"

SensorQuaternion quaternion(SENSOR_ID_RV);

void setup(){
  Serial.begin(115200);
  BHY2.begin();
  quaternion.begin();
}

void loop(){
  BHY2.update();
  Serial.println(quaternion.w());
  
  delay(500);
}