This is the step：
1、open one skeleton，run one animation.
2、keep run，close “animaton panel”，go to “setup Panel”
3、close the skeleton's eye in the “Hierarchy panel”
4、Open the skeleton's eye
5、Check any one animation，open the “animaton panel”.
This is my operation video，you can check in it.
Please fix it as soon as possible！
https://docs.google.com/file/d/0B9MYyriipTHsZmRGWGNhQXNoNGM/edit?usp=sharing
Google Drive can not preview this video, you should download it to see.