+++ This bug was initially created as a clone of Bug #1685219 +++
Use imagePullPolicy: IfNotPresent instead of always in:
$ oc get deployment -n openshift-cluster-machine-approver -o json | jq '.items.spec.template.spec.containers.imagePullPolicy'
$ oc get clusterversion
NAME VERSION AVAILABLE PROGRESSING SINCE STATUS
version 4.0.0-0.nightly-2019-03-13-233958 True False 24m Cluster version is 4.0.0-0.nightly-2019-03-13-233958
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.