No sound in Maschine 3 software

Maxleo

I have connected my Maschine Plus to the Maschine 3 software. It controlls the software, but I cannot get any sound out of it. I am using Focusrite Scarlett Solo interface and have chosen this for Mac, but I don't see where I can choose the interface in Maschine 3 software. The interface plays audio for everything else on my computer. Maschine + is connected via USB and is set to controller mode. On Mac, sound output is zero for the interface, but is greyed out and slider cannot be moved. However, when I switch the sound source to the mac speakers, no sound comes out either, and slider is active here. Can anyone assist?

Thanks