My rail network is saturated with repair turrets. Up until recently everything worked fine. Now, if I place a rail signal on an elevated rail, the repair turret will not build it. Works fine on ground rails. I can place them by hand on those spots, and ghosts are placed if I want them, but repair turret will not build them.
Has anyone else had this problem? Not sure if it is this mod, but I removed all other mods including space age and quality, and still happened.