Musescore App: Voices are Incorrect

Just a few minutes ago, I had uploaded a composition on my computer so I could pull it up on my tablet in school for a teacher to help with the arrangement. However, when I went to view it on my tablet, the song played fine except the cymbals, instead of sounding like crashes, sounded like a "whistle" voice. Upon reviewing it again on the computer, the cymbals played as expected. I'm not sure what is happening, but I can't preview or change anything about the voices of instruments on the app. Any ideas? Thanks!