[PvK]

There seems to be a ranged weapon bug, which I notice when I'm in a hidden redeye mercenary base, and I'm on the opposite side of a door from a redeye guard. If I am two squares away north/south, and one square away east/west, the guard can shoot me, but I can't shoot back, even though neither of us are moving.

In the same arrangement but the longer axis east/west, there is no such problem.

Edit: Hmm I also see it happening on a planet with a slime-throwing blob two squares north of me and one east, with a "city wall" tile to my north, and a cave entrance to my northeast. It can spit at me, but my LOS is blocked to return fire.