Not sure if you figured this out, but in case someone else finds this, as I did searching on the exact issue, I finally figured out the the midi out does work, at least in cubase, it’s just works backward to what you might expect… hovering over the X under the midi out icon you get the pop-up ‘midi out off’ which is the default state. Clicking the ‘X’ disables this, and you should be able to find the midi outs in the input routeing for instruments/tracks in Cubase then. It’s a little counter-intuitive for sure, basically you turn off the ‘midi out off’ switch. 
Hope that help someone puzzling over that …