Does your laptop have an HDMI out? You can get a sound box from Amazon for about $20 that will extract it so you can keep your headphones while using the HDMI out for your "Main" audio.
I also am having trouble with the same issue. Hoping for help fast. I switched to a new Windows 10 PC and was using DJ Twist and Burn on my old laptops which worked great. Trying to learn new software, plus having trouble like this stinks.