Two nearly identical animated meshes....why does one work and one does not.

These two maya files are almost exactly the same.

However in one there is no mesh and in the other there is.

Can anyone tell me why?

https://docs.google.com/leaf?id=0BxQ1MojK6S-tYTVlMWQ5OTgtMzc1NS00ZDA2LWIwMmYtZDkwMWIxYzc1Njk5&hl=en&authkey=CIqgwecJ

I guess certain project types prefer meshes, while others use physique. No clue other than that.