On loading the save after my last crash (#2) I went back to testing/playing *grin*
I ran into an issue with the game apparently refusing to allow me to upgrade regular wire to conductive wire. I would draw the new wire, see the ghost. Let go of mouse button and watch it vanish.
Eventually I realized that I had already placed the order before the last autosave before the crash,, confusing.
place a conductive wire upgrade order, save, close game, reload game and save. check wire order? attached save.