I'm guessing it has something to do with the fact that the part is wider than all the parts on sheet 3 and E-cabinets doesn't "know" that you can cut a 15 1/4" wide strip, cut the 19 15/16" long piece off of that, cut the remainder of the strip narrower and get the narrower pieces off of that. I nested it horizontally and it nested in 3 pieces.
I nested using your settings and I got the same results as you did. This is why I transfer everything to cutlist plus I have more control of the sheet layout, and I can compare it to ecab. nest
Gary
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