Vision Example Breaks on Edit

[flemdogmillion]

I implemented the LabVIEW Vision Example into my robot code successfully, but when I try to replace the algorithm that calculates height ratio of the two stripes to one that tells if they are close to the same height, the code breaks. A whole chain of low-level VIs in Rectangle Comparison.vi and Cull and Group.vi appear faded and do not execute. Any help getting edits to work would be much appreciated.

Note: I am not given an option to relink to subVI when I right click the faded VIs like i did with the Vision Processing VI.