Output contains previous generations about k8sviz HOT 7 CLOSED

sudo ./k8sviz.sh -n viz-demo-deployment  -t png -o viz-demo-deployment.png

kubectl create deploy --image=nginx nginx
kubectl scale --replicas=3 deploy/nginx
kubectl set image deploy/nginx nginx=nginx:stable

kubectl create deploy --image=nginx nginx
kubectl scale --replicas=3 deploy/nginx
kubectl set image deploy/nginx nginx=nginx:stable

kubectl get all
NAME                         READY   STATUS    RESTARTS   AGE
pod/nginx-7cd7b48495-8kptb   1/1     Running   0          9s
pod/nginx-7cd7b48495-cjjn6   1/1     Running   0          7s
pod/nginx-7cd7b48495-hjhg6   1/1     Running   0          11s

NAME                 TYPE        CLUSTER-IP   EXTERNAL-IP   PORT(S)   AGE
service/kubernetes   ClusterIP   10.96.0.1    <none>        443/TCP   12d

NAME                    READY   UP-TO-DATE   AVAILABLE   AGE
deployment.apps/nginx   3/3     3            3           36s

NAME                               DESIRED   CURRENT   READY   AGE
replicaset.apps/nginx-6799fc88d8   0         0         0       36s
replicaset.apps/nginx-7cd7b48495   3         3         3       11s

cat << EOK > nginx-deploy.yaml
apiVersion: v1
kind: Service
metadata:
  name: my-service
  namespace: viz-demo-deployment
  labels:
    app: my-app
spec:
  selector:
    app: my-app
  ports:
    - protocol: TCP
      port: 80
      targetPort: 80
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: my-deployment
  namespace: viz-demo-deployment
  labels:
    app: my-app
spec:
  replicas: 3
  selector:
    matchLabels:
      app: my-app
  template:
    metadata:
      labels:
        app: my-app
    spec:
      containers:
      - name: nginx
        image: nginx:1.17.10
        ports:
        - containerPort: 80
EOK 
kubectl create ns viz-demo-deployment
kubectl apply -f nginx-deploy.yaml
sed -i 's/nginx:1.17.10/nginx:1.19.2/' nginx-deploy.yaml
kubectl apply -f nginx-deploy.yaml 
sed -i 's/nginx:1.19.2/nginx:1.21.0/' nginx-deploy.yaml
kubectl apply -f nginx-deploy.yaml 
sudo ./k8sviz.sh -n viz-demo-deployment  -t png -o viz-demo-deployment.png -i mkimuram/k8sviz:devel #used the latest k8sviz.sh version