I’m a contributor on the Korean language course - 재미있는 한국어 4 Fun Fun Korean 4. I’ve been adding audio files to the existing words and definitions. So far I’ve added audio to 5 of the 15 levels. On the Memrise website the audio works, however when I try learn those levels in the android app only 3 out of the 5 levels play audio, the other 2 don’t. Furthermore I pay for a Memrise subscription, but I can’t seem to be able to use the ‘Listening Skills’ function on the android app, even though I’ve added audio, which is supposed to be unlocked if I subscribe. Please help me Thanks a lot!