I noticed for some reason that even though 快晴 is in my N2 Vocab list, it doesn't show up to study. My N2 Vocab list says there's no more terms to study, but 快晴 isn't marked as a known word despite being in the list.
Is this a glitch with the word not appearing, or is it possible I just marked the word as unknown and forgot about it and for some reason it hasn't gone back to being known?
I had a similar issue with my Genki 2 grammar schedule. お~する、ご~する never came up for some reason. If I remember correctly, earlier today (the 10th), I cloned my Genki 1 schedule, renamed it to "My Grammar", and merged in both my Genki 1 and Genki 2 schedules. Then I suddenly had 1 new grammar card to study.
After that, I think I added the Renshuu-provided Genki 2 2nd edition lists to the schedule and the new card vanished again. To fix it, I removed the Genki 2 2nd edition chapter 20 list, saved, and added it back in.
I might be misremembering exactly what I did, though.
So, I looked into that term (快晴) - you have done a few writing questions on it, so it's not new. Not entirely sure why the lightbulb is off - perhaps is was toggled off by accident at some point? But it is "learned", so it's part of the 2,399 terms to review.
にゃー : if you want to recreate the problem state and let me have at it, let me know. If it's not a big deal or important, though, it seems like an edge case.