It's very sadness that Expeditionpcb alway output gerber data with SIPs(Self-Intersecting Polygons) and Mentor refuse to improve thier program(See my prerious posts). Maybe Mentor expect Valor will help to get rid of this problem. The fact is that Up-to-Date V8.2.1 still can't rasterize the ill data correctly.
Attached is the sample data with SIPs and Valor shoudl fill 2 antipads (See below Picture)wrongly and report GND shoring with VCC because the original data is ill. Is Valor's Bug or Mentor's Bug. I think both make thing worse.It's a nightware you receive calls from your pcb fabs they complains your data is ill and they can't determine if it is right.