Deleted log, ran spine:
Spine Launcher 1.8.14-full
Mac OS X x86_64 10.9.2
Java 1.7.0_51 Oracle Corporation
Java HotSpot(TM) 64-Bit Server VM
Up to date: 1.8.14
Licensed to: xxx
Spine 1.8.14 Professional, JGLFW
ATI Technologies Inc.
AMD Radeon HD 6970M OpenGL Engine
2.1 ATI-1.20.11
Started.
Then it just hangs and I have to force quit.
That did make me remember that I had java 1.7 installed because of some previous application I was dealing with. I tried uninstalling that and going back to the apple 1.6 version. So far it seems like that's working.