Difficulty, Stability, and Retrievability disappeared for one deck

Anki Help
1

I created a new sub deck and moved a set of cards with a certain tag into it. Then, I created a preset for the sub deck, but then realized I didn’t need that so I switched them all back to the old preset and deleted the new one I’d created.

Now, all cards in the sub deck no longer have anything in the Difficulty, Stability, and Retrievability fields. They still have all their history, all the reviews I’ve ever done. I studied one card and all the information was re-populated, but I don’t want to have to study all cards in the deck (there’s a lot) before I can get that information back.

The only thing I’ve tried is to re-optimize the preset and that didn’t work. Not sure what else to do.

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Solved! I’ll leave this here in case it helps anyone in the future.

I opened the deck browser and selected the subdeck, highlighted all of them and clicked “FSRS: Update memory state and reschedule” and it re-populated all the missing information.

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