This is just a quick question: will placing a settlement in descr_regions.tga on what would be a river pixel in map_features.tga (or whatever the TGA for rivers is) ALWAYS result in that settlement not showing up, and a BRIDGE (i.e. a crossing) showing up instead? I have tried to test this out multiple times, but every time the settlement doesn't show up, and a bridge shows up spanning the river instead, even though no crossing was defined for that pixel.