I've used CAT often, but this time it's decided not to work. After doing heavy troubleshooting, here is what I resolved. When removing the audio track, CAT will work again. When having the audio track, CAT will not execute any commands. It will load a handful, but when trying to execute it will just close.
I've never seen the audio track effect CAT, only the midi tracks. Anybody have this issue prior that can shed some light?