If you don't take a flashcard on the day it was assigned it will be rescheduled by Osmosis. If you personally want to reschedule the flashcards that are overdue, you can do so here:
On this menu, you can also clear your progress history and set the time of space repetition refresh:
Troubleshooting:
Entering "0" will reschedule everything for the next day.
If you have questions, please feel free to contact [email protected].