I have a problem with my due cards not being shown. If I study a card and click on the option that states review in 2 days, 2 days later, I wouldn’t get that card in my due section. I know that cards are due as well as when I go to the browse section, under the ‘overdue’ tab, I can see all the cards that I was supposed to review but haven’t.
For my first 2 decks, I haven’t experienced this problem, but since then, I’ve made 2 more decks, and for both of them, I’m unable to go over ‘due’ cards.