Etcd operator is in degraded state as one of the masters can't connect.
Master that fails to connect was previously bootstrap and pivoted as part of assisted-installer installation to master.

Etcd log:
2023-01-17T23:09:26.523562312Z 28dcf1b0a44481b0, started, test-infra-cluster-04bf4418-master-1, https://192.168.127.11:2380, https://192.168.127.11:2379, false
2023-01-17T23:09:26.523562312Z 30600b5b86e23c8e, started, etcd-bootstrap, https://192.168.127.12:2380, https://192.168.127.12:2379, false
2023-01-17T23:09:26.523562312Z 73f00626fee34a87, started, test-infra-cluster-04bf4418-master-0, https://192.168.127.10:2380, https://192.168.127.10:2379, false
2023-01-17T23:09:26.541214220Z #### attempt 0
2023-01-17T23:09:26.547811132Z       member={name="test-infra-cluster-04bf4418-master-1", peerURLs=[https://192.168.127.11:2380}, clientURLs=[https://192.168.127.11:2379]
2023-01-17T23:09:26.547811132Z       member={name="etcd-bootstrap", peerURLs=[https://192.168.127.12:2380}, clientURLs=[https://192.168.127.12:2379]
2023-01-17T23:09:26.547811132Z       member={name="test-infra-cluster-04bf4418-master-0", peerURLs=[https://192.168.127.10:2380}, clientURLs=[https://192.168.127.10:2379]
2023-01-17T23:09:26.547811132Z       target={name="etcd-bootstrap", peerURLs=[https://192.168.127.12:2380}, clientURLs=[https://192.168.127.12:2379]
2023-01-17T23:09:26.547846508Z member "https://192.168.127.12:2380" dataDir has been destroyed and must be removed from the cluster

There are couple of problems that we see:
1. For unknown reason etcd operator BootstrapTeardownController fails to start as it fails to see "openshift-etcd" namespace though by the logs it is there.
2023-01-17T21:39:43.323928903Z E0117 21:39:43.323917       1 base_controller.go:272] BootstrapTeardownController reconciliation failed: failed to get bootstrap scaling strategy: failed to get openshift-etcd names

2. DelayStrategy code was change by https://github.com/openshift/cluster-etcd-operator/pull/964/files and currently it requires 3 healthy members in order to remove. It can create issues as etcd and cluster-bootstrap(bootkube) are not synchronized and nothing is actually blocking bootstrap on stop etcd and block remove of bootstrap etcd.(at least how i understand the flow)

It is race as far as i understand but reproduced pretty much in our CI by installing 4.12 nightlies

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Etcd is degrade cause third joined master etcd can't start

Etcd is healthy