Someone having the same problem? ...i updatedmy photoshop cc and in the 3D video timeline the 3D scene position disappeared...can not find it back anymore. My colleague has te same problem!? Hope adobe will fix it soon!
We removed the object position timeline layer. If you had scene level animation, what happens now is we create a group automatically in the 3d scene that holds all the scene content and the animation is now present on that group.