Is the audiobox usb clipping when you record? (Red light is flickering) it can be your input is too hot. Turn down the volume a bit and use the fader of the software to boost it a bit. The input of the USB 96 is really sensitive. Try using a super low input volume, both the interface as your synths/guitar/other hardware, just for test purposes. Does it still drop, despite the low input volume? Then something weird is happening.
If not, it means you need to find a good balance of not clipping the audiobox, and prevent hot input.
