b21 Lua error spam in the wilderness

[Mushroomhermit]

Randomly walking around in the wilderness I've started having the game spam me with infinite lua errors. Here is what I get in terminal.

Code: Select all

Lua Error: /engine/Map.lua:216: attempt to compare nil with number
	At [C]:-1 
	At /engine/Map.lua:216 seens
	At /mod/class/Game.lua:105 logSeen
	At /mod/class/WorldNPC.lua:82 
	At (tail call):-1 
	At /mod/class/Actor.lua:1419 attack
	At /engine/interface/ActorLife.lua:40 
	At (tail call):-1 
	At [string "return function(self, x, y, what, ...) loca..."]:1 
	At (tail call):-1 
	At /engine/Actor.lua:128 move
	At /mod/class/Actor.lua:381 move
	At /mod/ai//worldnpcs.lua:75 
	At (tail call):-1 
	At /mod/ai//worldnpcs.lua:55 
	At (tail call):-1 
	At (tail call):-1 
	At /mod/class/WorldNPC.lua:97 act
	At /engine/GameEnergyBased.lua:73 tick
	At /engine/GameTurnBased.lua:44 tick
	At /mod/class/Game.lua:671 
 ----------------  Stack Dump ----------------
--------------- Stack Dump Finished ---------------

Looks like I have a bugged wolf patrol in the west... I think friendly patrols trigger the glitch when they try to kill it.