In calibre the ondevice indications are set once the books are matched. The (many minutes) process is doing the book matching, as well as a lot of other things such as read syncing and book file-time checking if you have enabled either option.
It might be possible that they be cleared upon initial connection. I will look into that.
Last edited by chaley; 11-05-2014 at 10:34 AM.
Reason: typo
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