Kinect v2 library and find Users

Processing Libraries
1

When I run the app, the user is immediately detected. When he leaves the Kinect sensor field, the app still shows foundUsers = true and kinect.getNumOfUsers()=1. The number of users entering the Kinect field of view does not correspond to the real condition. What I have to do, reset kinect in draw function or is there another solution?

import KinectPV2.*;

KinectPV2 kinect;

boolean foundUsers = false;

void setup() {
  size(1024, 424);

  kinect = new KinectPV2(this);

  kinect.enableDepthImg(true);
  kinect.enableBodyTrackImg(true);

  kinect.init();
}

void draw() {
  background(0);

  image(kinect.getBodyTrackImage(), 0, 0);
  image(kinect.getDepthImage(), 512, 0);

  //raw body data 0-6 users 255 nothing
  int [] rawData = kinect.getRawBodyTrack();

  foundUsers = false;
  //iterate through 1/5th of the data
  for (int i = 0; i < rawData.length; i+=5) {
    if (rawData[i] != 255) {
      //found something
      foundUsers = true;
      break;
    }
  }

  fill(0);
  textSize(16);
  text(kinect.getNumOfUsers(), 50, 50);
  text("Found User: "+foundUsers, 50, 70);
  text(frameRate, 50, 90);
}