Doesn't play audio out of headphones

Just downloaded the newest update, and when I go onto any arrangement I'm working on and plug my headphones in, it still plays the audio out of my laptop speakers, rather then my headphones. I am pretty sure it is the musescore app and not my computer, as when I go onto youtube or spotify without changing anything with my headphones or computer settings, it plays through them, but when I go to musescore it does not.