Kana prompt not available for https://www.memrise.com/course/225026/jlpt-n2-vocab-5/

Hello, I am learning the Japanese course https://www.memrise.com/course/225026/jlpt-n2-vocab-5/

When I attempt to take the Review in my iOS device after I answer a question (irrespective of right/wrong) I’ll get the Kana prompt if the answers are all in Kanji… is it a bug or something the course creator should enable?