Check database recovers 195 cards and gives them a due date in 1955

This occured after something happened in Ankidroid and it randomly mad ea deck called “default”, when I synced it to the desktop this is what happens


The reason I did check database was because in the browser those cards said


My guess is you have been building/emptying filtered decks, and did not consistently sync at the start and end of each session, leading to conflicts. You’ll either need to restore from a backup, or reschedule those cards.

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Thanks for the reply!

I restored those specific cards from a backup and its working now. Its just a shame bec now I need to do the cards again. I’m usually very careful to sync all the time so I’m not sure how that happened.

Is there a way to backup the review history of each card so if I ever need to restore from a backup I could use the “review backup” to bring the cards I needed to restore up to date with their reviews?

Anki does not have such a feature at the moment.

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