A Duplicate Tape Library is shown in the UI and is offline
https://www.veeam.com/kb185817.02.2014 · Remove all tapes from Catalog (This might require the Tape Device to be powered down so all media is "offline") Delete the Media Pools on the Offline Library Remove the Offline Library (Right click + Remove Library) Create New Media Pools on the Online Library Catalog the Tapes to regain the Veeam Catalog and see the information inside Veeam's UI