Hey mate i read your comments in the 3den discussions: "Well, the problem is, sometimes when markers are copied and pasted, the vanilla editor will paste them at an uneditable elevation. They get "buried" beneath the terrain and scripts that rely on proximity to the markers won't work." You should go into the properties of the marker and change the X and Y axis values closer to zero, they are probably at a negative value if burried in the terrain. Hope that works for you.