Fatal crash when using 'Bounce MIDI' in piano roll

I’ve bound shift-J to “Bounce MIDI” to merge parts, I use it quite a bit. However, I was in piano roll mode, and attempted to do this to merge two notes, and Cubase outright crashes. No message, just quits. Can anyone verify this? I’m on Mac OS 10.6.8, Cubase 6.0.4.