I’m using linux mint. Yesterday the anki flatpak got updated to version 24.04.1 so I tried to optimize the FSRS parameters. Two out of the four presets I have got this error Error: 500: Only 0 reviews were found. You must have at least 400 reviews for this operation. It’s not the first time I opt…

Solved. With Danika’s input I went back to inspect the line above “ignore reviews before” (the search box, right?). Turns out I had very slightly changed the preset name in these months and anki didn’t update it… Now that this is done, I’d like to add one little question: in the search box for one…

[image] no-bark-noonan: All the presets refer to decks with many reviews How many is “many”? (FSRS only considers 1 review per card per day, so it’s sometimes harder to get to the minimum than you think.) Are all of those cards still unsuspended? Besides changing the date, are you limiting yo…

The greyed out text is the default value of the field for the preset.

Failing to optimize/evaluate FSRS for some presets: error 500 only 0 reviews were found

Anki FSRS

Topic		Replies	Views
FSRS: Optimize current preset -> No reviews found FSRS	4	156	February 6, 2026
"No reviews found." on FSRS-5 FSRS	8	100	June 2, 2026
Reoptimize not finding all reviews FSRS	6	374	October 30, 2024
Unable to optimize decks w/ FSRS Help	2	448	May 18, 2024
Why can't I optmize my FSRS parameters? FSRS	9	887	April 19, 2024

Failing to optimize/evaluate FSRS for *some* presets: error 500 only 0 reviews were found

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Failing to optimize/evaluate FSRS for some presets: error 500 only 0 reviews were found