C|24 Compatibility with ProTools 12

I have a C|24. using ProTools 12, and have a Focusrite Saffire Pro 40 as my interface. The C|24 works perfectly with ProTools in all aspects EXCEPT for the monitor section. I can't figure out to set up the board to pass signal to my studio monitors. I'm not sure if the C|24 is supposed to appear in the list of Playback Engines, but it does not currently appear.

Any help will be greatly appreciated. Thanks.

C|24 Compatibility with ProTools 12