Operator error: "Reconciler error" "unexpected cluster phase: Failed"

Couchbase operator 2.0.2 in Azure AKS.
Our test system has been running fine but when i edited the CouchbaseCluster resource (using kubectl edit) to add in the backup section it seems to have somehow broken the cluster. The server pod is not starting and the operator logs have:

{"level":"info","ts":1626706146.042298,"logger":"main","msg":"couchbase-operator","version":"2.0.2 (build 121)","revision":"release"}
{"level":"info","ts":1626706146.0425365,"logger":"leader","msg":"Trying to become the leader."}
{"level":"info","ts":1626706146.1314466,"logger":"leader","msg":"No pre-existing lock was found."}
{"level":"info","ts":1626706146.1365545,"logger":"leader","msg":"Became the leader."}
{"level":"info","ts":1626706146.189431,"logger":"kubebuilder.controller","msg":"Starting EventSource","controller":"couchbase-controller","source":"kind source: /, Kind="}
{"level":"info","ts":1626706146.28988,"logger":"kubebuilder.controller","msg":"Starting Controller","controller":"couchbase-controller"}
{"level":"info","ts":1626706146.3901062,"logger":"kubebuilder.controller","msg":"Starting workers","controller":"couchbase-controller","worker count":4}
{"level":"info","ts":1626706162.397268,"logger":"cluster","msg":"Watching new cluster","cluster":"test-tdm/cb"}
{"level":"info","ts":1626706162.3974047,"logger":"cluster","msg":"Janitor starting","cluster":"test-tdm/cb"}
{"level":"error","ts":1626706162.5166576,"logger":"cluster","msg":"Cluster setup failed","cluster":"test-tdm/cb","error":"unexpected cluster phase: Failed","stacktrace":"github.com/couchbase/couchbase-operator/vendor/github.com/go-logr/zapr.(*zapLogger).Error\n\t/home/couchbase/jenkins/workspace/couchbase-operator-build/goproj/src/github.com/couchbase/couchbase-operator/vendor/github.com/go-logr/zapr/zapr.go:128\ngithub.com/couchbase/couchbase-operator/pkg/cluster.New\n\t/home/couchbase/jenkins/workspace/couchbase-operator-build/goproj/src/github.com/couchbase/couchbase-operator/pkg/cluster/cluster.go:143\ngithub.com/couchbase/couchbase-operator/pkg/controller.(*CouchbaseClusterReconciler).Reconcile\n\t/home/couchbase/jenkins/workspace/couchbase-operator-build/goproj/src/github.com/couchbase/couchbase-operator/pkg/controller/controller.go:71\ngithub.com/couchbase/couchbase-operator/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem\n\t/home/couchbase/jenkins/workspace/couchbase-operator-build/goproj/src/github.com/couchbase/couchbase-operator/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:215\ngithub.com/couchbase/couchbase-operator/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func1\n\t/home/couchbase/jenkins/workspace/couchbase-operator-build/goproj/src/github.com/couchbase/couchbase-operator/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:158\ngithub.com/couchbase/couchbase-operator/vendor/k8s.io/apimachinery/pkg/util/wait.JitterUntil.func1\n\t/home/couchbase/jenkins/workspace/couchbase-operator-build/goproj/src/github.com/couchbase/couchbase-operator/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:133\ngithub.com/couchbase/couchbase-operator/vendor/k8s.io/apimachinery/pkg/util/wait.JitterUntil\n\t/home/couchbase/jenkins/workspace/couchbase-operator-build/goproj/src/github.com/couchbase/couchbase-operator/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:134\ngithub.com/couchbase/couchbase-operator/vendor/k8s.io/apimachinery/pkg/util/wait.Until\n\t/home/couchbase/jenkins/workspace/couchbase-operator-build/goproj/src/github.com/couchbase/couchbase-operator/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:88"}
{"level":"error","ts":1626706162.5276973,"logger":"controller","msg":"Failed to create Couchbase cluster","cluster":{"namespace":"test-tdm","name":"cb"},"error":"unexpected cluster phase: Failed","stacktrace":"github.com/couchbase/couchbase-operator/vendor/github.com/go-logr/zapr.(*zapLogger).Error\n\t/home/couchbase/jenkins/workspace/couchbase-operator-build/goproj/src/github.com/couchbase/couchbase-operator/vendor/github.com/go-logr/zapr/zapr.go:128\ngithub.com/couchbase/couchbase-operator/pkg/controller.(*CouchbaseClusterReconciler).Reconcile\n\t/home/couchbase/jenkins/workspace/couchbase-operator-build/goproj/src/github.com/couchbase/couchbase-operator/pkg/controller/controller.go:73\ngithub.com/couchbase/couchbase-operator/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem\n\t/home/couchbase/jenkins/workspace/couchbase-operator-build/goproj/src/github.com/couchbase/couchbase-operator/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:215\ngithub.com/couchbase/couchbase-operator/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func1\n\t/home/couchbase/jenkins/workspace/couchbase-operator-build/goproj/src/github.com/couchbase/couchbase-operator/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:158\ngithub.com/couchbase/couchbase-operator/vendor/k8s.io/apimachinery/pkg/util/wait.JitterUntil.func1\n\t/home/couchbase/jenkins/workspace/couchbase-operator-build/goproj/src/github.com/couchbase/couchbase-operator/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:133\ngithub.com/couchbase/couchbase-operator/vendor/k8s.io/apimachinery/pkg/util/wait.JitterUntil\n\t/home/couchbase/jenkins/workspace/couchbase-operator-build/goproj/src/github.com/couchbase/couchbase-operator/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:134\ngithub.com/couchbase/couchbase-operator/vendor/k8s.io/apimachinery/pkg/util/wait.Until\n\t/home/couchbase/jenkins/workspace/couchbase-operator-build/goproj/src/github.com/couchbase/couchbase-operator/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:88"}
{"level":"error","ts":1626706162.5278008,"logger":"kubebuilder.controller","msg":"Reconciler error","controller":"couchbase-controller","request":"test-tdm/cb","error":"unexpected cluster phase: Failed","stacktrace":"github.com/couchbase/couchbase-operator/vendor/github.com/go-logr/zapr.(*zapLogger).Error\n\t/home/couchbase/jenkins/workspace/couchbase-operator-build/goproj/src/github.com/couchbase/couchbase-operator/vendor/github.com/go-logr/zapr/zapr.go:128\ngithub.com/couchbase/couchbase-operator/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem\n\t/home/couchbase/jenkins/workspace/couchbase-operator-build/goproj/src/github.com/couchbase/couchbase-operator/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:217\ngithub.com/couchbase/couchbase-operator/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func1\n\t/home/couchbase/jenkins/workspace/couchbase-operator-build/goproj/src/github.com/couchbase/couchbase-operator/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:158\ngithub.com/couchbase/couchbase-operator/vendor/k8s.io/apimachinery/pkg/util/wait.JitterUntil.func1\n\t/home/couchbase/jenkins/workspace/couchbase-operator-build/goproj/src/github.com/couchbase/couchbase-operator/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:133\ngithub.com/couchbase/couchbase-operator/vendor/k8s.io/apimachinery/pkg/util/wait.JitterUntil\n\t/home/couchbase/jenkins/workspace/couchbase-operator-build/goproj/src/github.com/couchbase/couchbase-operator/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:134\ngithub.com/couchbase/couchbase-operator/vendor/k8s.io/apimachinery/pkg/util/wait.Until\n\t/home/couchbase/jenkins/workspace/couchbase-operator-build/goproj/src/github.com/couchbase/couchbase-operator/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:88"}

I have removed the backup section from the cluster resource but it has had no effect. Where can i get more info about what’s wrong?

Are you running the DAC as well? What version of server?
Can you grab a cbopinfo set of logs and resources so we can investigate on a support call?