Traffic light wiring jumbled

[stevefal]

I use glow color for traffic lights to get them to show up at night, but what is previewed in the green room does not appear in the set. In some cases the changes don't appear at all, and in others they appear in the wrong light position (red/yellow/green). For a two-way light, I think green works correctly, but red and yellow don't. The behavior is too confusing for me to describe - just messed up.