Flashcards for wrong language on "Words" page.
Well, yesterday I experienced something I believe is a bug, although I have no idea how it happened.
I'm learning Norwegian, which is in Beta at the moment, and French. The Norwegian language does not have a "Words" page where you can train on words with flashcards, but then I switched to my French page and went to "Words" and I got my Norwegian words showing in the list, and when I used the "review flashcards" button I got Norwegian words in the flashcards.
I didn't really mind since I actually want that feature for Norwegian as well, but I'm pretty sure it shouldn't show up when I am training French. It only happened once and I can't seem to reproduce the issue.