After updating from Anki 24.06 to Anki 24.11, the average difficulty of my cards, which used to be 45%, has dropped to 18%. I now have many cards with a difficulty of 0%, whereas previously, difficulties were much more evenly distributed between 0% and 100%. Now, I am facing the following situation:
My new parameters are:
1.7420, 4.6067, 23.6112, 100.0000, 7.2734, 1.0147, 2.6986, 0.0010, 1.4015, 0.0798, 0.8854, 1.9387, 0.0010, 0.2680, 2.4326, 0.0000, 3.8842, 0.3806, 0.5143
Here are three examples of cards I have just studied. Only the last repetition was done after upgrading to version 24.11.
In the first example, the difficulty dropped from 100% to 98%:
In the other two examples, the difficulty dropped to 0%:
Why do many cards now have a difficulty of 0%? Is this normal, or is it a bug?