The internal mac_map for switches uses uppercase only in some cases. When config file is used with lowercase and LLI contains uppercase switch mac, the lookup fails and BM port can't be bound.
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-2019:0950