I used to be able to see hints whenever I got a word wrong when using courses. Now that option is gone. I’ve looked around for it, but can’t find it, so I guess it’s gone for good.
Usually when you learn a new word it gives you a few choices to select from (in my case I’m referring to Remembering the Kanji). They were quite helpful to refresh the mnemonics, but now I’m just told that I got something incorrect and have to move on.