I set up a custom workspace with the CC Libraries panel included, but whenever I close InDesign and reopen it later, the panel has disappeared. Everything else stays the same. I've tried recreating the workspace, saving it under a different name, all with the same result. This is very frustrating, since I use multiple creative suite apps and the libraries have become a very convenient way to transfer elements between them; I don't run into this problem with Photoshop or Illustrator. Is this a known bug, or are there any ideas how to solve this problem?