Nodes stacked on top of each other

[lgoodkind 40]

I am trying to go through the tutorials here however when i open the exercise files for part 6 all of the Marionette nodes are stacked on top of each other. Changing the units of the document as well as changing the layer scale has no effect on this.  

The solution is to scale the entire network - not sure why this is

 

 

However when I