HW60 said:Maybe the problem can be reduced to the following problem: When I export flashcards with "all cards" selected, there are cards exported which have no category when I find them with Search Cards, but which are not exported when I try to export them with "Cards in categories" / "Uncategorized". 碍,败 and 棒 (and others) are examples of my flashcard.pqb (if you still have it). Maybe it is not too difficult to find out why these cards are not exported with "Cards in categories" selected.
Checking your database, it looks like you've actually got some "orphaned' cards assigned to categories that no longer exist (or rather, child categories of categories that no longer exist) - there were a couple of bugs in our old Palm/WM software that could cause that. If you send us your latest flashcard file we can clean those up for you, but since you'll then have to replace your flashcard file with our fixed version, you should probably do this right before a time when you plan to take a day or two off from flashcard reviews (so you don't lose any progress that you make while waiting for us to send back the file).