iPad GarageBand to MBP GarageBand Export - loses keyboard

Hey All,

I've just exported a little ditty I was working on from GarageBand on my iPad to GarageBand on my MacBookPro. When I do so, everything comes across okay except for the midi keyboard part I had recorded. It shows the midi in the track, but at playback there is NO sound. I recorded this using the Heavy Metal Organ on the iPad, which shows within GarageBand on my MBP. Any idea on how to make this work? I'd prefer to not dump the midi to audio because I am still editing it.

Thanks!

Ben