I've created https://github.com/openshift/cluster-authentication-operator/pull/177 to expand the list of possible reasons we see these degraded clusters.
The degraded reason print not very nice, such as: Status: Conditions: Last Transition Time: 2019-08-27T03:31:42Z Message: RouteHealthDegraded: failed to GET route: EOF Reason: RouteHealthDegradedFailedGet Status: True Type: Degraded Do we need colon seperate the reason, like this: Reason: RouteHealthDegraded: FailedGet build version, 4.2.0-0.nightly-2019-08-26-202352
Verified on 4.2.0-0.nightly-2019-08-26-202352
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-2019:2922