Hi! I understand that some of your flashcards in the Gizmo app are disappearing, and that can be concerning. To help you better, could you tell me a bit more about the situation? For example:

- When do the flashcards disappear? Is it right after you create them, or after some time?
- Are they disappearing from specific decks or all your decks?
- Have you noticed if the flashcards disappear after reviewing, syncing, or any particular action?
- Are you using any import or automation features to create the flashcards?

Knowing these details will help me guide you to the best solution. Meanwhile, here are some common causes and initial steps you can try:

1. Sync Issues: Sometimes, flashcards might not sync properly across devices, causing them to appear missing. Make sure you are connected to the internet and sync your account fully.

2. Filter or View Settings: Check if any filters or search parameters are active that might be hiding certain cards.

3. Check Trash or Deleted Items: Some apps have a Trash section where deleted cards are stored temporarily. Ensure that the missing cards are not accidentally deleted.

4. Restart the App: Close and reopen Gizmo to refresh the app.

If none of these resolve the issue, there is a known tip from users that sometimes cards become "unlinked" or their association with decks changes, causing them to seem like they've disappeared. You can try looking for unlinked cards within the app to recover them.

Would you like me to guide you through these steps in detail based on what you've tried already or any additional info you provide?