Is this a bug? Probably, but anyway:
Screenshot:
http://steamcommunity.com/sharedfiles/filedetails/?id=918073861
Modules that have an effect overlay on floors/walls will give away the floor's layout. This is Psionic Command Aura, but I imagine (haven't tested) that Overwatch and other such modules will have the same effect.
Comments
Hehe...I should have reported it days before, felt like a hypocrite after bemoaning the teleport exploit. I have a feeling that this is an engine issue and will not be fixed anytime soon, so might as well have everyone on a fair playing field.
In fact, the only potential fix I can see with this one is for the path to be made up of invisible walls (these don't show floor/wall effects) and for the tiles to teleport in and out when the switch is tossed.