I have a problem, where “Edit sentence” button brings me to the wrong sentence in an imported book. While I could try to swap page several times in this mode to find the correct one, if I then edit it, it replaces another sentence instead, creating a duplicate.
That’s very frustrating because I need to edit sentences quite often when reading Japanese books, to remove furigana or fix wrong splits.
I could not reproduce this problem with the web version though.
Thanks for reporting, we will look into it.