It sounds like you guys already figured this out, but I can confirm that the problem was the b3d file. When I opened it in Ultimate Unwrap, there was skeletal animation, but the mesh was not bound to the skeleton. Also, there were only three bones (each side of the hip and one knee;) I don't know if you meant that or not.
I get that same feeling when helping one friend with Maya. He keeps using layers, but to me that just complicates the scene graph.
wow you have been playing with layers
I get that same feeling when helping one friend with Maya. He keeps using layers, but to me that just complicates the scene graph.