I just noticed that my partner’s profile (created on Anki 2.1.33) had a starting ease factor of
130% in the default option group (and I set up her Anki install and definitely didn’t modify this) and clicking “Reset Defaults” results in the correct default ease factor (
250%) being used. I just double-checked and if I create a new profile in Anki 2.1.33 the default option group of the default deck has an ease factor of
130% (and hitting “Reset Defaults” switches it back to
Not sure when this regression was introduced but this is pretty bad because it means that someone’s entire deck might have an exponentially larger hardness than they expect (and there isn’t a nice user-friendly way of fixing this – even if you modify the ease factor in the database manually the existing intervals will still be based on the old ease factor).
EDIT: This was introduced in Anki 2.1.28.