Audio file doesn't match song data
If you notice that the audio on a mission task doesn't match the given song data, and refreshing the page a few times doesn't fix it, you can try the following steps:
1) Ensure that the Spotify app is not open on the same device you're contributing to the mission from.
2) Ensure that the Spotify account you use to contribute is not in use on any other devices at the same time. Changing song on your phone whilst contributing on your PC can cause the audio to shift on the Musixmatch player.
3) Once you've ensured both of these things, try closing and re-opening the mission task
4) If the problem remains, try the steps noted here