Custom study: Sort by Last Failed (time)

Please consider adding a Sort by Last Failed search option.
This would be very useful to me and probably many other people to be able to grind the Kanjis we struggled with.

For now I'm using the "Most Difficult First" which is also useful, but in some sessions/some cases, Sort by Last Failed would be even more useful. (Both are very useful in different situations)

Thanks in advance! Your app has been of a great help to me so far, I'm grinding my kanji writing skills as this is required for the language school I will be joining in April 2025. (N2 needed)