When I click on a new position for units, there should be yellow circles to indicate flat ground, and red slashed circles to indicate deep water, steep terrain, etc. But with ProjectMagma's TFL, all I ever see are yellow circles.
if you have soulless selected along with warriors for example and click on steep terrain, it will show yellow circle. Same for deep water with thralls..
Are you talking about real TFL (patch 1.5) or vTFL in Myth 2 (and which version? What Zeph said is correct, but if it's happening only when you have warriors or zerks selected, something is wrong.