I'm the very new owner of a sonic port VX and have used it for one recording session using audiobus and an iPad Air2. Everything was working great last night, but when I went to listen back, there was no sound. Sonic port VX was plugged into the Lightning connector, and levels were showing a signal, but there is no sound coming out of my headphones. When I unplugged the sonic port, the sound returned. In loving this thing and all the possibilities it offers, but that is what makes this problem all the more frustrating. Cheers.