Not sure whether this has been fixed, but there used to be a bug with the lighthouse where the Bäsekar is (D10). If you run inside, enemies will be able to target you through walls if they stand in the area which is behind/covered by the ligthouse when viewed from outside, and you can also attack them. Does not happen when standing outside to the south, but if the door is opened, they will also be visible through doorway from the eastern side. Possible reason: the wall is not considered an obstacle when the full sprite is not displayed on screen. There could be other similar areas too.