Share 'GH file behave different in R5 compared to R4'

I just opened a GH definition file in Rhino 5 that was originally generated in GH + Rhino 4 and I have noticed some significant differences... The main one being the way "SDIVIDE" surface behaves Here is a quick screenshot: Rectangle gets SubSurf, than smaller rectangles get SubDivided, and circles are added to points. Am I missing something? Thanks!