It was an ELS lightbar from another one of my models. Someone else made it for me.
I was hoping it would work. So I tried it. More than once, it worked fine. All 3 stages fully functional. However, I tried it again on another one of my models, but it's not working. I can see the light reflections appearing. So the reflections work, But the lights on the lightbar are not turning on.
Not sure if it's the order of the extras 1-11 or where they are located in the heirachy? But weird how it works partially?
Any suggestions?