I am working an example learning how to do PCB design using Allegro PCB editor from the OrCAD 16.6 suite, and I'm having a problem where, when I try to put a guard ring around a through-hole pin, it erases the trace when I place the last point of the arc. It won't let me place a complete circle. Is there something I'm doing wrong?
I've placed a via from ground to the top routing layer, a straight trace that goes above my pin, then as I place the arcs around the pin, it will not let me complete the circle. If I click to place the last point of the arc, it erases the whole thing and has me start over again.
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