A weird buzz

I'm trying to create a piece of music congaing the instruments Poly Synthesizer, Saw Synthesizer, and Bass Synthesizer, but after 5 to 10 minutes of working on the piece, there is this semi-loud buzz with no consistency (what I mean by that is it will but for 2 seconds then stop for 1/2 a second then buzz for 1 second then stop for 1/4 a second and etc.). I have checked multiple headphones, but the same problem happened. It only happens while the Muse Score application is active, every other application works just fine with no buzz. It just started happening today when I created the new score. I hope that you patch this annoying bug that forces me to close the application quite often.