Prophecy Normal Lab unsolvable tonight

Prophecy Normal Lab is unsolvable, requires Golden Key to progress beyond Estate Crossing.
Golden Key is found in Santorum Annex, entered from Estate Crossing.
Golden Key is locked behind door, switch is located at top middle of screenshot below.
No route leads to switch, it is inaccessible.

Are you sure? it's definitely not unheard of for the lab to generate impossible instances but i think this case should be fine. It's a commonly reproduced layout!

I ran the lab in normal mode today and I did the gold key too. It's the one where you go from the upper-right of the golden chest room to the bottom-right direction, you should encounter the spike traps towards the bottom left area.

in other words did you try this?


edit: wait i forgot there should be one more spike pattern room where I drew my red line.
It's the alternating floor traps in a 3x2 shape, where x# is representing each floor spike, . representing walls, and 0 representing doorways
...0...
.x1 x2.
.x3 x4.
.x5 x6.
...0...
x1 x4 x5 go up, then after they go down x2 x3 x6 go up and repeat.