I've been trying to adjust the catenary on my Railway 2 tracks so I don't get huge clusters of poles when I use anarchy to connect tracks in ways the game doesn't like, and someone suggested I use BOB to remove individual poles (which apparently isn't something BOB actually does? But anyway.). When I use the BOB menu to select the pole I want to alter, most (but not all) of the poles of that type instantly disappear from all my track, even though I never clicked the button to remove them, or tried to adjust them in any way. Just selecting the item to look at it causes them to vanish. Since I never told BOB to do anything, I also can't un-do it. The only fix is to quit and re-load the save from before I opened BOB.