Using OrCAD PCB Editor 16.6-2015
I'm trying to delete a differential pair, but getting very odd behavior. In Constraint Manager, I find the pair in Net->Routing->Differential Pair. I right-click on the pair name and choose Delete. The pair is then deleted, but also the tool decides to auto-generate edge-to-edge etch shapes on every layer of my board!. My board outline also disappears at this time.
What is going on here?