kube-scheduler can be deployed without cert-syncer having valid token. This ca be caused by a race when making revisions from token Secret as in https://bugzilla.redhat.com/show_bug.cgi?id=1819256
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.