I have Anki Version 2.1.48, in Windows 10 Pro 21H1.
I use the AutoEaseFactor add-on.
I wanted to experiment with Custom Study.
- Review Forgotten Cards.
I selected the number of days to give me a small number of cards. That gave me one card. (I only have about 3,000 cards.)
Before doing anything, I ran the query in the browser and recorded the the stats for Due, Interval, and Ease.
In Custom Study. I checked the option:
- Reschedule cards based on my answers in this deck
I then executed the Custom Study. I made sure that I provided the correct answer.
After running the Study, I again examined the stats in the browser.
The values for Due, Interval, and Ease were identical to the pre-Study run. Nothing had changed !!
Question: What did the Custom Study actually do for me?
BTW: I expected that the values for Due, Interval, and Ease would all have increased to values that would have been approximately equal to the values that I would have obtained if I had not failed that one card a few days previously.