What the heck is going on? I wanted to change a three way switch so I made sure I was in the route session, deleted the switch or junction, made the adjustments that I wanted, placed the revised track arrangement and when I placed the switch the arrows were all red. No matter what I try in either session nothing works. I cannot get the switch arrows to be both green and red. Haven't run into this before. It's just a simple switch, no fancy track work to complicate things. Any suggestions or ideas?