User-contributed fix; bypassed the contact form so no #Hnnnn number. On the Gnome King's Wine Cellar version of Mines' End, a couple of wall stubs in the lower far right were diggable, unlike all other walls on the level. One single-spot wall stub was leftmost of three undiggable spots, wall+floor+stone. The floor spot wasn't noticeably different from normal (not sure whether digging a pit was prohibited) but the stone one was.
33 KiB
33 KiB