Constraints with name attribute

I'm trying to figure out how can I possibly make NX10 change automatically the constraints in an assembly as I replace a part for another.

First thing I tried is to define constraints with name attributes. In a very simple exemple I define contraints relative to the absolute CSYS of the assembly.

First constraint: align axis 

Second constraint: face and datum touch

When I create another part and define axis and face for the constrains with the exact same name the program recognize the change and adapt the constraints but there's an error that I can't explain. It looks like both constraints can work fine separately but not together. Does anyone has an idea of what to do to make it work?

All files are there so you can take a look of what I'm trying to achieve.

Thanks you.