I really don't know how to call this technically, so there's a video:
https://dl.dropboxusercontent.com/u/5791804/video.avi
Basically, if you change animations in runtime, they start adding up, like if the bones from previous animations are not being turned off.
On the video I change several times from animation to animation, and they start adding up. On the last part, I hit the "reload" button on my gameobject, and it suddenly works.
The strange thing is that the spineboy works. I can change to all animations and this error don't happen.
I tried using different shaders, I followed every atlas import for t2kd and compared it to spineboy. And it's all the same.
Maybe the artist is using something differently inside spine?
Any lights?
Using Unity 4.6.0, tk2d