The OpenStack UPI documentation sets a soft-anti-affinity policy on the Control Plane; however, soft-anti-affinity is not supported in the Ansible versions currently supported by Red Hat.
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