Hi, and thanks for posting your options ; I think I may have isolated the problem, but to be sure I'd like to get your metadata.db file so I can test my bug fix on it.
The easiest way to help me is to send a private message with your Dropbox URL to the metadata.db file (if you use Dropbox) ; this way, I can also access the ebook files if this is needed. I'll keep that private, don't worry