New building, lights puzzle doesn't work and I can't figure out why

[Drinking Partner]

I'm at the new building, I have the blue key (I have already solved the clocks puzzle), and no matter what I try, I cannot get the lights to explode and drop the rooftop key. I have gone, in order, from the electrical room at the bottom, to 1 > 5 > 8 > 10 > 12. turning on all the lights, while following the janitor so he doesn't turn around and immediately chase me (which is still ridiculously frequent), but nothing ever completes. No cut-scene or anything. I went back around twice (as in, two different times - I'm getting so frustrated at the lack of a result that I'm just letting the janitor catch and kill me), and all the lights were on in the correct rooms, the switch was still activated in the electrical room... And absolutely nothing will do anything. I'm about ready to give up because none of this makes sense.

[Havearrow]

None of lights in the other rooms should be on. The switch in the electrical room should be flipped last. Also, beware that janitor can turn them off while you go downstairs.

[Drinking Partner]

Originally posted by Havearrow:

The switch in the electrical room should be flipped last.

This is what I didn't know before. Thank you, I finally did it.

[wallendorf thick]

was encountering the same problem, thank you <3