I'm using Acid Music Studio 10 on Windows 10, with a Focusrite Scarlett USB preamp. I've just recently began using the chopper feature, but lately when I try to play samples or clips in the chopper there is no sound. I can play the track fine and all other sounds on my PC work normally, but when I try to preview the sample in the chopper I get silence. This also happens when the Focusrite is unplugged. Is there a secret mute button I don't know about?

Thanks!