Quote:
Originally Posted by Sirtel
The main reason is probably mucking around in library folders and manually moving/deleting files. Lots of people probably have no idea you shouldn't do that with calibre.
Another reason might be having your library on a cloud drive and accessing it from different computers.
And yet another reason might be failed or unsuccessful bulk operations. I've certainly run quite a lot of bulk actions on my whole library through the years. I've been lucky so far.
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Those 'my fault' were bulk ops that exceeded the intended scope.
In my case, I restored from a backup that I had just done prior to a bulk op.