Yesterday, it was the 2nd or 3rd day that I had switched my kanji schedule to slow and thorough, and suddenly I got many questions about the trickiest aspects of kanjis. Mostly, it's about the kun-yomi of kanjis that do not have any common words with that reading. Or even no word at all that I can find, such as かけ。る for 県. That's far beyond what most people should learn. I'm guessing it's a word that disappeared from common use centuries ago? That's the most extreme case I got, but at least a dozen other questions were way beyond what I could reasonably expect to learn, with no common word using the rare reading that was asked. The kun yomi of 権 is maybe worse than the kun yomi if 県, because it's 3 things to remember (omori, kari, haka.ri), all that for an alternative spelling of はかりどの, which is a "temporary shrine (houses the object in which the deity resides when main shrine is under repairs)". Most Japanese people probably don't know this word, or the kun yomi of 県 or 権 (after high school), I guess.
In case it was related to the setting, I switched back to quick and simple, but it didn't seem to help, today, also it's strange that it didn't start the first day of me using this setting. Maybe it's due to a change on the site, around the word merging process?
The second strange thing was this morning, when I opened the main page it said that all my schedules were fully studied. Of course when I opened each schedule, it appeared I had about 130 vocab and 40 kanjis to review. That was odd.
Then a 3rd strange thing happened during review... which I forgot while describing the first 2. Let's see if it comes again...