I don't use that method to get back to my library often at all, when I tried it, I thought "uh oh, it doesn't work for me either, it just sits there highlighted in black." But staring at it long enough, it finally did what it was supposed to and bring me to the library. It's like the first time you try to use it, it might be doing some internal catalog sorting or something. After that initial time, it's been a near instant transition to the library.
I'm guessing the more books you have on the reader, that initial use of it might take longer. Are you giving it enough time and just see if waiting it out doesn't finally bring up the library?
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