I Need help using AR as ableton midi controller!

I’m trying to set this up so I can use one track on my AR as a make shift midi controller for live.

So I click the midi map button in Ableton, click the parameter in Ableton that I want to map, but as soon as I send the midi signal from the AR that I want to map Ableton quits “unexpectedly”.

Is this a bug or am I doing something wrong?