No direct input sound with yamaha audiogram 3 interface

I have a Yamaha Audiogram 3 usb interface going into a custom pc I built running Cubase AI elements 10 and I cannot hear anything, I’ve set up the interface to match “bus” inputs and outputs. I can hear my recording playback, but only if I crank the level on the interface itself. How can I hear the direct guitar signal in the amp sim before I record it? Anyone got any ideas? Thanks!