No sound out of digitone + Overbridge Ableton

So Ive just taken delivery of a DN and a DT and am trying to get them working in Live 10 Mac.

The DT is up and running and working perfectly via Overbridge.

The DN is a different story.

I have set it up as per instructions but I get no sound. There is sound when I connect my headphones directly to the DN but not through Live.

Help please.