Can't access Kibana web interface after upgrading to OpenShift 3.11

Issue

• Cannot login to Kibana after upgrading to OpenShift 3.11
• Cannot login to Cluster console
• Logs from kibana-proxy container shows:

# oc logs kibana-xxx -c kibana-proxy
2019/01/8 21:30:11 auth: unable to verify auth code with issuer: Post https://openshift.example.com:8443/oauth/token: x509: certificate signed by unknown authority
2019/01/8 21:30:12 server: authentication failed: unauthenticated

• Logs from master-api shows:

Encountered config error json: unknown field "masterCount" in object *config.MasterConfig, raw JSON:
http: TLS handshake error from 10.10.0.51:35612: EOF
http: TLS handshake error from 10.10.0.52:32848: EOF
http: TLS handshake error from 10.10.0.50:45654: EOF
v1beta1.servicecatalog.k8s.io failed with: Get https://172.128.0.0:443: dial tcp 172.128.0.0:443: connect: no route to host
v1beta1.metrics.k8s.io failed with: Operation cannot be fulfilled on apiservices.apiregistration.k8s.io "v1beta1.metrics.k8s.io": the 
object has been modified; please apply your changes to the latest version and try again