The Auto router fails to avoid pins where the Schematic has that pin marked with "no connect flag". The effect is that traces and vias are placed so they cut through those pins on the PCB. As far as I'm aware, schematic design requires all pins to be connected or have no connect flag. But, even if a pin is marked with no connect, it still may have signals. But, I also need to stop the Auto routerin its works, because it cannot finish my design. I get Auto router timeout on my design, but I also get these errors constantly. Simplex.cutout_from: division line is null Simplex\.calc\_division\_lines: division not found Simplex.cutout_from: division line is null Simplex\.calc\_division\_lines: division not found So I cannot say exactly which error is the culprit here... Using auto router version 0.8.1 Please make some work on the auto router.