Need to disable pullback in Altium Designer

[c64]

4 layer boards. I place embedded board array in Altium. Embedded board has power planes with pullback set to 0.

However, when I generate gerbers, it still places (although very thin) trace around the edge of embedded board  on both power planes.

Any way to disable this?

[Pseudobyte]

I'd recommend you stop using planes, most people have switched to positive polygons instead of planes. Then just scope a board outline rule to your polys and set it to 0.