I just updated to the latest version and encountered a bug.
By default the project will be spineboy in the editor. Then I changed the current project file to my own, and worked on it a bit, then exited. Next time I launched spine it will crash before it goes into editor. After crash, I relaunched it and the project will be spineboy again.
I have tested it several times and spine always crashed after I changed the default spineboy project to my own and saved my own project.
There should be spine.log submitted already, but I will post the content here.
Spine Launcher 1.2.1-full
Licensed to: XX
Windows 8 x86 6.2
Java 1.7.0-u6-unofficial Oracle Corporation
OpenJDK Server VM
Up to date: 1.5.10
My OS is win 8 pro 64 bit