Fiori Launchpad: Catalog/Tile labels missing in copied client

Hello, we've setup Fiori for PPM and it worked like a charm. However, after creating a new client on the system using the client copy feature (client 100 was created as a copy of client 010), one of the catalog and its tiles in the Fiori launchpad of the new client are displayed without the respective label. Of course the respective PFCG roles have been assigned to the users in client 100 as well and it still works fine in client 010. Other catalogs work fine. The labels for both the catalog and the tiles are missing in either language DE and EN. It works fine on client 010 but labels are missing on client 100. I've deleted the UI2 cache, applied the newest notes for this, however, it still doesn't work. Thanks for any helpful input. Regards Wolfgang