Hi, Resolved the issue with roof faces not finishing without exiting each roof face one at time. Added vs.EndGroup() into each of the Pass Nodes at the end of each network. Seems to stop and close out each roof section. Marissa, what does this vs.EndGroup actually do besides the obvious? This also resolved all the multiple run networks that weren't working like running multiple walls, the all run at once now. There seems to be a callback issue when i tried another way to set this up