My (FSRS) Algorithm is Completely Messed Up

I’m going to write out a narrative on what I been through:

Last used anki in 2022, I assume it was with the original settings since I never touched that.
Started using Anki again and researched/implemented FSRS in 2025. Everything was fine, until randomly my intervals became absurd (for new cards - good =1.4years For interday learning - good = 2.6 months). I didn’t abuse the hard button, my retention was 90% and moved it up to try to fix (didn’t work).

After a conversation with a Rep from AnkiHub (because reddit proved to be unhelpful), we discovered that the card history shows data from 2022 (data on cards vary from 1-5 prior reviews). With no other visible confounding factors, I am led to believe that my account history is being implimented into my current preset algorithim.

I went through the following with no success:

  1. Created a new preset for each subdeck
  2. Clicked on the refresh icon that prompts “Reset to default parameters”. I will note that this function worked UNTIL I had a downloadable update from AnkiHub. This update is essential as I was using a older version of the deck. In other words, reverting back to the time before the update would not benefit me.
  3. I even tried “Ignoring cards from…” feature.

So here I am now. Idk how many hours I spent on getting Anki set up lol. I’m looking for the simplest and guaranteed to work solution.

  1. Is there a feature to completely wipe off my data from anki? Preserving my deck and current scheduling
  2. Should I create and use another account? The deck I’m using is from AnkiHub, a paid subscription; so I’d have to delegate that transfer.
  3. Anything else?

I appreciate any advise here. I just wanna click my buttons and get back to studying. Thanks again

I don’t understand why that’s a surprise. Those cards have old review history because you studied them in 2022. It doesn’t sound like anything is messed up. What you’re seeing sounds reasonable and expected. [You didn’t post any examples, so if I’m missing the issue, that might help.]

You’re resuming after a years-long break, so if you get cards right, they should be set for long intervals. It’s the same logic as the original SM-2 algorithm followed – Due times after a break - Anki FAQs – but FSRS uses a different formula.

If you get them wrong, you should grade them Again, and it doesn’t matter what the interval was on the Good button, because Anki didn’t apply it.

FSRS is also better than SM-2 was about preserving more of the pre-lapse interval after you Relearn a card. But if you’ve optimized your parameters, that should be based on your own history of dealing with cards after they lapse. Who’s to say that’s wrong?

  1. What do you want to wipe off that is not your scheduling (which is the same as your review history)? It’s not clear what you’re trying to get rid of.

  2. I don’t think that would help with anything.

Are you trolling? Cuz not cool dude. And If you aren’t, bare with me on this explanation cuz I’m emotional rn… Let me try to be clearer:

I’m posting “My intervals are janked”. Because they are. I don’t want the algorithm to assume that I dont need short term intervals because I reviewed it in 2022 (for the record, it is 2025).

I want my parameters to be default. As if. I. Neve.r. seen. the Card before.

I would like to have a hard reset on the interval algorithm, SOMEHOW, SOMEWAY.
Additionally, I would like to preserve my scheduling — I will subjectively define MY SCHEDULING as, "the data that I already have reviewed within restarting Anki: This data (referencing what I want to keep) includes: the cards that I reviewed during the most recent period of time).
At the same time, I want DEFAULT parameters on whatever algorithm Anki is using (I currently have FSRS enabled).

I dont see a way to export my deck without scheduling. I tried to do so, into a new profile THAT IS WITHIN THE SAME ACCOUNT (idk if that makes a difference, but hey shooters gonna shoot).

I found this link from a more productive post:

" You can use the following add-on to remove the old history after an accidental import: https://ankiweb.net/shared/info/2089200096 "

Thoughts?

I reset all my cards using that add-on. At first glance, I dont see any previous history on cards and intervals are within normal limits. I apologize for the sas, but I been told 100 times “trust the process” when I clearly wanted instructions on resetting my data. All fair.

No, I’m not trolling you.

The algorithm isn’t assuming that. The algorithm is giving you access to that.

You seem to be asking both to reset your cards to New [which you didn’t mention originally, and is easy to do: Cards > Reset Browsing - Anki Manual ] – and to preserve your recent study history. But you can’t have it both ways. Your cards either have the review history/scheduling they have, or they don’t.

If you want to reset only certain cards to New – like the cards you haven’t reviewed so far in this recent era – search for something like -is:new -is:suspended -rated:60 [all active cards that haven’t been studied in the past 60 days] – select all > Cards > Reset.

To get back the default (unoptimized) FSRS parameters, you can either use the button next to the parameters field to reset (and click the message to confirm), or you can simply delete the optimized parameters from the field. Save after making that change.

Yes, that would be another way to leave all of your review history behind, for all of your cards. Exporting without scheduling – Exporting - Anki Manual – uncheck the “include scheduling information” and “include deck presets” options.

You can have a separate profile in the same install of (desktop) Anki – but it won’t be able to sync with the same AnkiWeb account. Profiles - Anki Manual

That add-on works to remove history from those cards, but it doesn’t also reset them to New, so you’ll need to do that separately (and I’d suggest doing it first, before running the add-on). Again – it’s all or nothing for each card you run this on.

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4 posts were split to a new topic: FSRS learning steps