The 5.5.* Normalize Mapping cube, Unmatched Package report, and Unmatched Files report are disabled by default. This is due to the MatchAddremove and MatchExe configuration settings being disabled in order to improve performance. Please see below if you want to re-enable them.
To enable these, you need to change the following parameters and make them true in Norm.configuration.config (This file can be found under ..\BDNA\Data Platform\Conf)
By default the above values are set to false.
After you change the parameters, you need to rerun the Normalize tasks and then you should see the Normalize Mapping cube with both the Unmatched Package and Unmatched Files report showing up.