Cubase Studio 4 and ZOOM r24 in MacOS

Hello I’m a happy Cubase Studio 4 user with a macbook pro in Yosemite 10.10.5, with my old hardware, audio boards (audiogram 6,edirol UA4fx)This are working without problems. The problem now it’s with a new multitrack that I buyed. A ZOOM r24.

The problem it’s that no sound OUT in cubase studio 4. The drivers are ok, installed the last one, It’s reconoced inputs and outputs correctly but no audio sound. Just silence. (Inputs are recording fine)

Also I have license for Cubase AI9 and here r24 works like a charm.

Any solution for repare this problem on cubase studio 4 and Zoom r24?

Macbook pro mid2010 with Yosemite 10.10.5