diff --git a/code/__HELPERS/colors.dm b/code/__HELPERS/colors.dm
index 1c4cbbd9704c..a58721a6603b 100644
--- a/code/__HELPERS/colors.dm
+++ b/code/__HELPERS/colors.dm
@@ -84,6 +84,10 @@
 /// But paired down and modified to work for our color range
 /// Accepts the color cutoffs as two 3 length list(0-100,...) arguments
 /proc/blend_cutoff_colors(list/first_color, list/second_color)
+	// These runtimes usually mean that either the eye or the glasses have an incorrect color_cutoffs
+	ASSERT(first_color?.len == 3, "First color must be a 3 length list, received [json_encode(first_color)]")
+	ASSERT(second_color?.len == 3, "Second color must be a 3 length list, received [json_encode(second_color)]")
+
 	var/list/output = new /list(3)
 
 	// Invert the colors, multiply to "darken" (actually lights), then uninvert to get back to what we want
diff --git a/code/modules/clothing/glasses/engine_goggles.dm b/code/modules/clothing/glasses/engine_goggles.dm
index 2185dd19fde4..f3ddf19bbe64 100644
--- a/code/modules/clothing/glasses/engine_goggles.dm
+++ b/code/modules/clothing/glasses/engine_goggles.dm
@@ -51,7 +51,7 @@
 
 		if(MODE_TRAY) //undoes the last mode, meson
 			vision_flags = NONE
-			color_cutoffs = list()
+			color_cutoffs = null
 			change_glass_color(user, /datum/client_colour/glass_colour/lightblue)
 
 		if(MODE_PIPE_CONNECTABLE)
diff --git a/code/modules/reagents/chemistry/machinery/chem_master.dm b/code/modules/reagents/chemistry/machinery/chem_master.dm
index fde4d21ea444..811d08fcec5e 100644
--- a/code/modules/reagents/chemistry/machinery/chem_master.dm
+++ b/code/modules/reagents/chemistry/machinery/chem_master.dm
@@ -197,7 +197,7 @@ GLOBAL_LIST_INIT(chem_master_containers, list(
 
 /// Insert new beaker and/or eject the inserted one
 /obj/machinery/chem_master/proc/replace_beaker(mob/living/user, obj/item/reagent_containers/new_beaker)
-	if(!user?.transferItemToLoc(new_beaker, src))
+	if(new_beaker && user && !user.transferItemToLoc(new_beaker, src))
 		return FALSE
 	if(beaker)
 		try_put_in_hand(beaker, user)
diff --git a/code/modules/surgery/organs/eyes.dm b/code/modules/surgery/organs/eyes.dm
index 6e196b52af5e..aaadb308076d 100644
--- a/code/modules/surgery/organs/eyes.dm
+++ b/code/modules/surgery/organs/eyes.dm
@@ -228,7 +228,7 @@
 			color_cutoffs = high_light_cutoff.Copy()
 			light_level = NIGHTVISION_LIGHT_HIG
 		else
-			color_cutoffs = list()
+			color_cutoffs = null
 			light_level = NIGHTVISION_LIGHT_OFF
 	owner.update_sight()
 
diff --git a/monkestation/code/game/machinery/cloning.dm b/monkestation/code/game/machinery/cloning.dm
index d194835204ed..5e94c995db4f 100644
--- a/monkestation/code/game/machinery/cloning.dm
+++ b/monkestation/code/game/machinery/cloning.dm
@@ -383,11 +383,9 @@
 		icon_state = "pod_0"
 		return
 
-	if(!mob_occupant)
+	if(QDELETED(mob_occupant) || !exp_clone_check(mob_occupant))
 		return
-		
-	exp_clone_check(mob_occupant)
-	
+
 	current_insurance = null
 	REMOVE_TRAIT(mob_occupant, TRAIT_STABLEHEART, CLONING_POD_TRAIT)
 	REMOVE_TRAIT(mob_occupant, TRAIT_STABLELIVER, CLONING_POD_TRAIT)
@@ -415,9 +413,9 @@
 	unattached_flesh.Cut()
 
 	occupant = null
-	
+
 /obj/machinery/clonepod/proc/exp_clone_check(mob_occupant)
-	return
+	return TRUE
 
 /obj/machinery/clonepod/proc/malfunction()
 	var/mob/living/mob_occupant = occupant
diff --git a/monkestation/code/game/machinery/exp_cloner.dm b/monkestation/code/game/machinery/exp_cloner.dm
index f16bb07afbbc..6d522ee9cfcd 100644
--- a/monkestation/code/game/machinery/exp_cloner.dm
+++ b/monkestation/code/game/machinery/exp_cloner.dm
@@ -84,6 +84,8 @@
 /obj/machinery/clonepod/experimental/exp_clone_check(mob/living/carbon/human/mob_occupant)
 	if(!mob_occupant?.mind) //When experimental cloner fails to get a ghost, it won't spit out a body, so we don't get an army of brainless rejects.
 		qdel(mob_occupant)
+		return FALSE
+	return TRUE
 
 /obj/machinery/clonepod/experimental/proc/get_clone_preview(datum/dna/clone_dna)
 	RETURN_TYPE(/image)
diff --git a/monkestation/code/modules/blueshift/machines/ore_silo.dm b/monkestation/code/modules/blueshift/machines/ore_silo.dm
index 9763c8826307..490c89ce06a6 100644
--- a/monkestation/code/modules/blueshift/machines/ore_silo.dm
+++ b/monkestation/code/modules/blueshift/machines/ore_silo.dm
@@ -7,10 +7,13 @@
 	/// What this packs into
 	var/packed_type = /obj/item/flatpacked_machine/ore_silo
 
+/obj/machinery/ore_silo/colony_lathe/Initialize(mapload)
+	. = ..()
+	AddElement(/datum/element/repackable, packed_type, 10 SECONDS)
+
 /obj/machinery/ore_silo/colony_lathe/silo_log(obj/machinery/machinery_in_question, action, amount, noun, list/mats)
 	. = ..()
 	playsound(src, 'sound/machines/beep.ogg', 30, TRUE)
-	AddElement(/datum/element/repackable, packed_type, 10 SECONDS)
 
 /obj/machinery/ore_silo/colony_lathe/default_deconstruction_crowbar()
 	return