I have 3 light pipes each with 9 fixtures. When I select all fixtures and turn on light only 8 beams show at a time. (every configuration is always only 8 visible at a time...all show as on thought) If i then go to a single fixture and turn it off a beam that visible will appear on another fixture...usually a differ pipe. I have even deleted all fixtures and put the back into the drawing. Same thing happens every time.
Here is what happens with select all fixture and turn light on...
Here is what happens when I manually turn on 8 lights, after 8 the system will start hiding beams for every light I turn on.