I had the Bad Sun event and a power outage on a transformer at the same time. During the event, your camera is forced to look at the black box over the sun, which I assume is intentional. The problem/bug is that when I was trying to access the panel on the transformer, the black box was still showing through the gaps in the walls of the transformer building. So every time I'd hit E on the panel, my camera would start turning towards the sun and it would lock my view on the panel but leave me unable to see the 3 lights on the left of the light puzzle.
I was able to eventually complete the puzzle by angling myself so that I'd have a split second of time to move the mouse to the left side of the screen and click quickly while the camera locked onto the panel.
This was 0.9d unstable btw, sorry if this is the wrong place to report it.