I installed Calibre 3.4.0 yesterday (Win 7 64-bit) and when I wanted to add books it showed the folders as empty, it couldn't find any files, although they were in there. Even when showing all file types nothing was found.
I downloaded 3.4.0 again and let it repair the installation. This fixed the problem for now.
I downloaded 3.4.0 again and let it repair the installation. This fixed the problem for now.
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