This lab Implement DevOps Workflows in Google Cloud: Challenge Lab is broken.
The last step did not give me any credit although i rollbacked to the previous version using different ways - Kubernetes commands, building previous revisions from Cloud Build and etc.
I have rebuild V1 image from build history
Also used this command:
kubectl -n prod rollout undo deployment/production-deployment
GKE Pods are using the version 1 image now but check progress is not passing.