wirelessdreamer reported this in the forums:
I messed around with my bass some last night. I've got to troubleshoot a bug before i'll be able to play though. Looks like my axon with a gk-2b hooked up to it crashes g2ghpro, as far as running a midi module from it it plays great, so once I find out whats causing the issue bass should work great for me.
It was an error thrown from rtmidi, I was booted in windows at the time, so I didn't dig into it then. I was running the windows binary you posted the other day. Going to do a fresh build from svn and give it a go when I get some time this week. Also if you have any ideas of how to make it behave better in windows I'm open to suggestions, It hangs up and crashes on me in windows when it sees things it doesn't expect, usually the culprit is rtmidi.
This build ignores sysex messages. There are also some code cleanup changes that make the note on and strum events modular to reuse code rather then duplicate it should behave the same from a user perspective.
Test build that ignores sysex midi input messages