Please add entitlement CA cert into the migrate script. It's important to preserve backward compatibility for older client. Without this CA being placed correctly onto RHUI 3.0 CDS, older client would not be able to communicate and fetch content.
We are removing this BZ from beta2 It should be sufficient for a new client config from RHUI3 to replace the installed client config with new entitlement certificates and updated .repo files.
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/RHEA-2019:1283