AttemptedTestErrorFix1

code/game/objects/effects/landmarks/landmarks.dm

@@ -228,12 +228,19 @@
 		GLOB.yautja_teleport_descs[T.loc.name + T.loc_to_string()] = src
 
 /obj/effect/landmark/yautja_teleport/Destroy()
-	var/turf/T = get_turf(src)
-	GLOB.mainship_yautja_teleports -= src
-	GLOB.yautja_teleports -= src
-	GLOB.mainship_yautja_desc -= T.loc.name + T.loc_to_string()
-	GLOB.yautja_teleport_descs -= T.loc.name + T.loc_to_string()
-	return ..()
+    var/turf/turf = get_turf(src)
+    var/index = turf.loc.name + turf.loc_to_string()
+    if(is_mainship_level(z))
+        GLOB.mainship_yautja_teleports -= src
+        if(GLOB.mainship_yautja_desc.Find(index))
+            GLOB.mainship_yautja_desc[index] = null
+        GLOB.mainship_yautja_desc -= index
+    else
+        GLOB.yautja_teleports -= src
+        if(GLOB.yautja_teleport_descs.Find(index))
+            GLOB.yautja_teleport_descs[index] = null
+        GLOB.yautja_teleport_descs -= index
+    return ..()