Audio Playback issues

I write for drumline, and with the most recent versions of musescore, when I try to listen to what I'm working on a very loud buzz sound plays instead of the first note. It's almost as if it's trying to play all the notes before it all at once. I've had similar issues to this when working with very large scores in the past, but now it's a problem with only three instruments and less than 8 bars. No other scores are open.