External effects

I’m not able to make my external effects work.

I am sending to two channels of my external effect, my Cranesong HEDD.

I can see signal coming into the HEDD.

In my audio interface (an AXR4) I can see the signal returning to the two channels that i would like to use as my returns…

In Wavelab I can see the signal coming into the send gain (which i can see if routing to the HEDD) but there is no signal getting to the return of Wavelab even though I can see the channel I’ve chosen for the return having a signal in my AXR4.

I was able to get it working.

I needed to send a analog signal back. A digital signal through my audio interface did not work.