[entodoays]

I don't think that is related to corrupted books since the problem arose when I deleted a book and not a periodical. It seems that the database gets mixed up somehow. Presently many of my books are showing a different book's thumbnail.
I've uploaded quite a number of pdf's as well, some of which are unreadable by the Reader application. In these cases, no thumbnail is produced and if I try to open it with reader I get an "invalid page!" error. I read these pdf's on my pc with foxit reader, evince or with Orion pdf viewer on the T1.
An example pdf file unreadable by the "Reader" app is attached.