掲示板 Forums - Big bug in the vocab scheduling.

First surprise this morning, the schedules were shown as completed, meaning they had not updated at 2 am. They updated only around 7 am.
Then, I started my N2+N3 schedule, and here I saw that I had not done 50% of it yesterday, which I'm pretty sure is wrong, I did it fully in the morning.
Then I saw that I had way more terms to study than expected: the daily limit 90, instead of 50-60. And there was an indication why: 74 terms indicated as level 1, which doesn't make sense.
And then I started the quiz and saw what kind of questions were at level 1.
I had to answer term>kana or kana>term questions for て貰う　溢れる　煎る
Those kanjis are not JLPT, and not on my schedule, so something is wrong. Or maybe, after you updated the JLPT database you decided we should know them. It could make sense, it's not like they're completely obscure, I had seen them before and could answer correctly. I'll let you check before finishing this schedule.
There was nothing weird with the kanji schedule.
I guess the bug happened last night, after I had finished studying for the day.

While I'm waiting, here is what got cleaned up this morning:

There were a number of terms (of all types) that had been marked at a certain mastery level in the past (without having been studied). This happened, though, without making an additional entry in the db that is usually made for any term studied, marked as known, etc.

Upon discovering this, I made those secondary entries. In the case of kanji, it would have marked that kanji as known, and filtered down to vocabulary terms that included that kanji.

So, in the case of  煎, here is the data that I have:

1 - It was marked as level 9 on your account about 100 days ago. Since it was marked so high, it has not yet come up for quizzing. However, when marked, it did not get that secondary entry.
2 - I created secondary entries for all terms that were marked at a non-zero mastery level in the past.
3 - The site picked this up, and then toggled on the kanji on all terms that included 煎 in it, including 煎る.
4 - It is now available for quizzing on those vectors.

I originally thought that my morning fix somehow marked kanji at high levels incorrectly, but with this kanji at least, it was marked loooong ago. 

Strangely, though, looking at your account, there are a TON of kanji like this. all supposedly marked up on that same day, about 100 days ago.

If you'd like, I can wipe out all of those kanji for you, and rebuild the kanji bindings on your terms. It only looks like there are 3 kanji terms you've marked at a certain mastery level without studying it later, and the rest fall into this strange category.

Let me know and I'll pull the trigger!

No additional work was done except for the fix above, so I do believe it was a bug that happened a loong time ago, and this fix brought the incorrect data "to light", so to speak.

You (or the bug) didn't mark the vocab, just the kanji (and a ton more, I'm talking thousands). It then marked the vocab as having kanji known.

You're only looking at those 3 kanji, but there are a huge number of them, so again, "bug" from a long time ago (or odd user action) caused the majority of these kanjis to be marked as 9, and rolling that back should fix just about everything.

Should look at lot better now!

So, in my first run of this cleaned-up schedule, I noticed 3 words that were level 1 (now level 2) and shouldn't have, and this reminds me of a suggestion I had in mind:
the 3 words were 舌，毒、肌。
I think they shouldn't have been level 1, because ideally, there could be a bridge between the kanji questions and the vocab questions, and all 3 kanjis are at level 5+. Such bridges could slightly reduce the sizes of schedules.
If I answer kanji→kana or kana→kanji for the kanji 舌, don't I answer the exact same question for the corresponding word?
When I answer kanji→kana for a word made of 2 kanjis that are read with their only ON -yomi, don't I answer the same question for both of those kanjis?
etc.
So, today, I just have 23 words that suddenly popped-up at level 1, it's a tiny glitch, but if there's a possibility of creating such bridges, that might take care of 3 things:
-a slight reduction of schedules, because currently we sometimes get the same question twice in the same day, once for the kanji, once for a word.
-this mysterious arrival of known words at level 1 couldn't happen again
-and maybe a side effect of this would be to eliminate the bug that bothers you so much that you're offering 6 months of renshuu pro for its resolution.

Good point! Looking forward to those large updates!

You were still in the 24 hour period after the fix where "leftover" stuff could have stuck around. I would be shocked if the same were to happen during your next reload.