GCE LB not picking up readinessProbe URL - google-compute-engine

Question

I updated readiness probe in my deployment file and also specify port in ingress, service and deployment.
But my GCE Load Balancer health check is not reflecting the correct path (even I delete and recreate ingress).
Am I missing any configuration?
apiVersion: networking.gke.io/v1
kind: ManagedCertificate
metadata:
name: custom-app-managed-cert
spec:
domains:
- uat.xyz.com
---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: app-ingress
annotations:
kubernetes.io/ingress.class: "gce"
kubernetes.io/ingress.global-static-ip-name: app-gce-uat-ip
networking.gke.io/managed-certificates: custom-app-uat-managed-cert
spec:
rules:
- host: "uat.xyz.com"
http:
paths:
- pathType: Prefix
path: "/"
backend:
service:
name: custom-app
port:
number: 80
---
apiVersion: v1
kind: Service
metadata:
name: custom-app
spec:
type: LoadBalancer
selector:
app: custom-app
ports:
- port: 80
targetPort: 80
type: ClusterIP
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: custom-app-gke
spec:
replicas: 1
selector:
matchLabels:
app: custom-app
template:
metadata:
labels:
app: custom-app
spec:
serviceAccountName: app-svc
containers:
- name: custom-app-app
image: xxx
imagePullPolicy: Always
ports:
- containerPort: 80
readinessProbe:
httpGet:
path: /health
port: 80
env:
- name: PORT
value: "80"
---