Merge pull request #11485 from Ghommie/Ghommie-cit625

Fixing a little issue with the musician trait etcetera.

code/modules/mob/living/carbon/human/species.dm

@@ -397,7 +397,7 @@ GLOBAL_LIST_EMPTY(roundstart_race_names)
 		if(I.flags_inv & HIDEFACIALHAIR)
 			facialhair_hidden = TRUE
 
-	if(H.wear_mask)
+	if(H.wear_mask && istype(H.wear_mask))
 		var/obj/item/clothing/mask/M = H.wear_mask
 		dynamic_fhair_suffix = M.dynamic_fhair_suffix //mask > head in terms of facial hair
 		if(M.flags_inv & HIDEFACIALHAIR)
@@ -451,7 +451,7 @@ GLOBAL_LIST_EMPTY(roundstart_race_names)
 		if(I.flags_inv & HIDEHAIR)
 			hair_hidden = TRUE
 
-	if(H.wear_mask)
+	if(H.wear_mask && istype(H.wear_mask))
 		var/obj/item/clothing/mask/M = H.wear_mask
 		if(!dynamic_hair_suffix) //head > mask in terms of head hair
 			dynamic_hair_suffix = M.dynamic_hair_suffix

code/modules/mob/living/simple_animal/friendly/dog.dm

@@ -445,7 +445,7 @@
 				sleep(3)
 				step_to(src,movement_target,1)
 
-				if(movement_target)		//Not redundant due to sleeps, Item can be gone in 6 decisecomds
+				if(movement_target?.loc)		//Not redundant due to sleeps, Item can be gone in 6 decisecomds
 					if (movement_target.loc.x < src.x)
 						setDir(WEST)
 					else if (movement_target.loc.x > src.x)

code/modules/surgery/organs/eyes.dm

@@ -319,6 +319,8 @@
 	on_mob.forceMove(scanning)
 	for(var/i in 1 to light_beam_distance)
 		scanning = get_step(scanning, scandir)
+		if(!scanning)
+			break
 		if(scanning.opacity || scanning.has_opaque_atom)
 			stop = TRUE
 		var/obj/effect/abstract/eye_lighting/L = LAZYACCESS(eye_lighting, i)