Necro posting because this came up in search results. There is a way to detect power instantly (within a couple of frames), without waiting for accumulators to charge. If you use a basic counter circuit (by hooking up an arithmetic combinator's output to its own input along with a constant 1 on the ...

tile section of map editor was open
blueprint library was open
clicked the x to close the blueprint library
a window behind it appeared to close instead, I don't recall which that was, but it wasn't my aim, I think the game closed the wrong window and then tried to reference it.
Not sure whether I ...