My new \\\$150 licensed DraftSight does not work on "Extend these displays". However it does work on "Duplicate these displays" and "Show only on 1 or 2". I am using a Surface Pro 6 with an LG 27in 4k display. The previous free DraftSight worked perfectly on "Extended these displays" including every other drawing and engineering program on my Surface Pro. I assume this is a DraftSight software stuff-up, does anyone know how to fix this? Thank you.