I found another bug.
Go to the Bookshelf view preferences. change the opacity to 50%, remove the templates from line 1 and 2. Then click apply and the bookshelf becomes empty. A restart does not restore the bookshelf. There seesm to be no way to show the books. I even switched to a different library and it still failed to show in the Bookshelf. Going back to an earlier configuration directory does not work to show the Bookshelf.
