AH phyiscal input and overbridge waveform window

Quick question about the waveform window in AH’s Overbridge application (standalone & VST): Is the waveform window (the window in the bottom left corner that shows incoming audio, envelope, lfo curves etc) supposed to display the audio coming in through the physical input jacks? Or does it only display whatever it receives via USB, e.g. when used in a DAW? The overbridge manual is not explicit on this.
In my case, the window shows nothing, even though on the display of my device I can see the meter, envelope, and LFO shapes from incoming audio. I have updated to the latest firmware and overbridge is the most recent version as well. Overbridge detects the device and all the other functions work as they should.