When generating the bootstrap ignition file for OpenStack platform, we're manually creating the dataurl while we should have been using a dataurl library for this. https://github.com/openshift/installer/pull/2932/files/1154bacad57027c037b7c1ef3f4e1177fbc53413#r370433763
Verified on 4.4.0-0.nightly-2020-02-06-104707
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-2020:0581