Tried this last night with latest OS and Beta on my AK and Ableton 9.5.
Weirdly ableton is reporting 0ms latency but I get no audio routing. So even though I have activated two audio channels in the overbridge control app they are not working properly.
The result is perfect for my needs, though but I am pretty sure it is a bug.
I don’t even load the Overbridge app is what I’m saying. in Cubase, I create a new instrument, select Elektron Analog Rytm, the GUI for Overbridge pops up and I can now edit the Rytm.