Description of problem:

https://prow.svc.ci.openshift.org/job-history/origin-ci-test/logs/release-openshift-ocp-installer-e2e-gcp-ovn-4.3 has been failing for some time with the following log:

Installing from release registry.svc.ci.openshift.org/ocp/release:4.3.0-0.nightly-2019-12-10-103826
level=warning msg="Found override for release image. Please be warned, this is not advised"
level=info msg="Consuming Install Config from target directory"
level=info msg="Creating infrastructure resources..."
level=info msg="Waiting up to 30m0s for the Kubernetes API at https://api.ci-op-k6btpf44-f342c.origin-ci-int-gce.dev.openshift.com:6443..."
level=info msg="API v1.16.2 up"
level=info msg="Waiting up to 30m0s for bootstrapping to complete..."
level=info msg="Cluster operator network Progressing is True with Deploying: DaemonSet \"openshift-multus/multus-admission-controller\" is not yet scheduled on any nodes"
level=info msg="Pulling debug logs from the bootstrap machine"
level=info msg="Bootstrap gather logs captured here \"/tmp/artifacts/installer/log-bundle-20191210112839.tar.gz\""
level=fatal msg="Bootstrap failed to complete: failed to wait for bootstrapping to complete: timed out waiting for the condition"

Checking logs from apiserver and scheduler operators I get "0/3 nodes are available: 3 node(s) had taints that the pod didn't tolerate.". Node taints still contain NoSchedule:node.kubernetes.io/network-unavailable taint. Also, after checking 34c0ee99a5c4.log under https://storage.googleapis.com/origin-ci-test/logs/release-openshift-ocp-installer-e2e-gcp-ovn-4.3/64/artifacts/e2e-gcp/installer/log-bundle-20191210112839.tar I see a lot of the following lines:

"99_openshift-machineconfig_99-master-ssh.yaml": unable to get REST mapping for "99_openshift-machineconfig_99-master-ssh.yaml": no matches for kind "MachineConfig" in version "machineconfiguration.openshift.io/v1"

Could be something wrong with the way machine config CRDs are deployed?

Version-Release number of selected component (if applicable):
4.3.0-0.nightly-2019-12-10-103826

How reproducible:
Always

Steps to Reproduce:
https://prow.svc.ci.openshift.org/view/gcs/origin-ci-test/logs/release-openshift-ocp-installer-e2e-gcp-ovn-4.3/64

Actual results:
DaemonSet \"openshift-multus/multus-admission-controller\" is not yet scheduled on any nodes

Expected results:
DaemonSet \"openshift-multus/multus-admission-controller\" is scheduled

Additional info: