The test assumes that all apiservers are in sync but they can be delayed significantly. "should prevent Ingress creation if more than 1 IngressClass marked as default" is the test
Checked latest CI test and didn't see the flaky any more. https://testgrid.k8s.io/redhat-openshift-ocp-release-4.5-informing#release-openshift-ocp-installer-e2e-azure-serial-4.5
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. https://access.redhat.com/errata/RHBA-2020:2409