Merge pull request #9510 from Ghommie/Ghommie-cit240

Fixing tracking implant teleport issues.

code/game/objects/items/implants/implant.dm

@@ -89,11 +89,12 @@
 	return TRUE
 
 /obj/item/implant/proc/removed(mob/living/source, silent = FALSE, special = 0)
+	SEND_SIGNAL(src, COMSIG_IMPLANT_REMOVING, args)
 	imp_in = null
 	source.implants -= src
 	for(var/X in actions)
 		var/datum/action/A = X
-		A.Grant(source)
+		A.Remove(source)
 	if(ishuman(source))
 		var/mob/living/carbon/human/H = source
 		H.sec_hud_set_implants()

code/game/objects/items/teleportation.dm

@@ -187,8 +187,13 @@
 		user.show_message("<span class='notice'>\The [src] is recharging!</span>")
 		return
 	var/atom/T = L[t1]
+	var/implantcheckmate = FALSE
+	if(isliving(T))
+		var/mob/living/M = T
+		if(!locate(/obj/item/implant/tracking) in M.implants) //The user was too slow and let the target mob's tracking implant expire or get removed.
+			implantcheckmate = TRUE
 	var/area/A = get_area(T)
-	if(A.noteleport)
+	if(A.noteleport || implantcheckmate)
 		to_chat(user, "<span class='notice'>\The [src] is malfunctioning.</span>")
 		return
 	current_location = get_turf(user)	//Recheck.