diff --git a/Content.Client/GameObjects/Components/Crayon/CrayonDecalVisualizer.cs b/Content.Client/GameObjects/Components/Crayon/CrayonDecalVisualizer.cs
index 317dcf5504..e5b6045f1f 100644
--- a/Content.Client/GameObjects/Components/Crayon/CrayonDecalVisualizer.cs
+++ b/Content.Client/GameObjects/Components/Crayon/CrayonDecalVisualizer.cs
@@ -13,13 +13,20 @@ namespace Content.Client.GameObjects.Components.Crayon
 
             var sprite = component.Owner.GetComponent<SpriteComponent>();
 
-            var state = component.GetData<string>(CrayonVisuals.State);
-            var color = component.GetData<Color>(CrayonVisuals.Color);
-            var rotation = component.GetData<Angle>(CrayonVisuals.Rotation);
+            if (component.TryGetData(CrayonVisuals.State, out string state))
+            {
+                sprite.LayerSetState(0, state);
+            }
 
-            sprite.LayerSetState(0, state);
-            sprite.LayerSetColor(0, color);
-            sprite.Rotation = rotation;
+            if (component.TryGetData(CrayonVisuals.Color, out Color color))
+            {
+                sprite.LayerSetColor(0, color);
+            }
+
+            if (component.TryGetData(CrayonVisuals.Rotation, out Angle rotation))
+            {
+                sprite.Rotation = rotation;
+            }
         }
     }
 }
diff --git a/Content.Client/GameObjects/Components/Kitchen/MicrowaveVisualizer.cs b/Content.Client/GameObjects/Components/Kitchen/MicrowaveVisualizer.cs
index f9508fa289..0c12b02f62 100644
--- a/Content.Client/GameObjects/Components/Kitchen/MicrowaveVisualizer.cs
+++ b/Content.Client/GameObjects/Components/Kitchen/MicrowaveVisualizer.cs
@@ -1,4 +1,5 @@
-using Content.Client.GameObjects.Components.Sound;
+#nullable enable
+using Content.Client.GameObjects.Components.Sound;
 using Content.Shared.GameObjects.Components.Power;
 using Content.Shared.GameObjects.Components.Sound;
 using Content.Shared.Kitchen;
@@ -11,13 +12,13 @@ namespace Content.Client.GameObjects.Components.Kitchen
 {
     public sealed class MicrowaveVisualizer : AppearanceVisualizer
     {
-        private LoopingSoundComponent _loopingSoundComponent;
-
         public override void OnChangeData(AppearanceComponent component)
         {
             base.OnChangeData(component);
             var sprite = component.Owner.GetComponent<ISpriteComponent>();
-            _loopingSoundComponent ??= component.Owner.GetComponent<LoopingSoundComponent>();
+
+            var loopingSoundComponent = component.Owner.GetComponentOrNull<LoopingSoundComponent>();
+
             if (!component.TryGetData(PowerDeviceVisuals.VisualState, out MicrowaveVisualState state))
             {
                 state = MicrowaveVisualState.Idle;
@@ -27,7 +28,7 @@ namespace Content.Client.GameObjects.Components.Kitchen
                 case MicrowaveVisualState.Idle:
                     sprite.LayerSetState(MicrowaveVisualizerLayers.Base, "mw");
                     sprite.LayerSetState(MicrowaveVisualizerLayers.BaseUnlit, "mw_unlit");
-                    _loopingSoundComponent.StopAllSounds();
+                    loopingSoundComponent?.StopAllSounds();
                     break;
 
                 case MicrowaveVisualState.Cooking:
@@ -38,8 +39,8 @@ namespace Content.Client.GameObjects.Components.Kitchen
                     var scheduledSound = new ScheduledSound();
                     scheduledSound.Filename = "/Audio/Machines/microwave_loop.ogg";
                     scheduledSound.AudioParams = audioParams;
-                    _loopingSoundComponent.StopAllSounds();
-                    _loopingSoundComponent.AddScheduledSound(scheduledSound);
+                    loopingSoundComponent?.StopAllSounds();
+                    loopingSoundComponent?.AddScheduledSound(scheduledSound);
                     break;
 
                 default:
diff --git a/Content.Client/GameObjects/Components/WindowVisualizer.cs b/Content.Client/GameObjects/Components/WindowVisualizer.cs
index e66ded87d2..87f6e6339c 100644
--- a/Content.Client/GameObjects/Components/WindowVisualizer.cs
+++ b/Content.Client/GameObjects/Components/WindowVisualizer.cs
@@ -1,11 +1,11 @@
-using System;
+#nullable enable
+using System;
 using Content.Shared.GameObjects.Components;
 using Content.Shared.Utility;
 using JetBrains.Annotations;
 using Robust.Client.GameObjects;
 using Robust.Client.Interfaces.GameObjects.Components;
 using Robust.Shared.GameObjects.Components.Transform;
-using Robust.Shared.Interfaces.GameObjects;
 
 namespace Content.Client.GameObjects.Components
 {
@@ -17,24 +17,29 @@ namespace Content.Client.GameObjects.Components
             base.OnChangeData(component);
 
             var sprite = component.Owner.GetComponent<ISpriteComponent>();
-            var snapGrid = component.Owner.GetComponent<SnapGridComponent>();
+            if (!component.Owner.TryGetComponent(out SnapGridComponent? snapGrid))
+                return;
+
             var lowWall = FindLowWall(snapGrid);
-            if (lowWall == null) return;
+            if (lowWall == null)
+                return;
 
             if (component.TryGetData(WindowVisuals.Damage, out float fraction))
             {
                 var level = Math.Min(ContentHelpers.RoundToLevels(fraction, 1, 7), 5);
                 if (level == 0)
                 {
-                    foreach (WindowDamageLayers val in Enum.GetValues(typeof(WindowDamageLayers)))
+                    foreach (var val in Enum.GetValues(typeof(WindowDamageLayers)))
                     {
-                        sprite.LayerSetVisible(val, false);
+                        if (val == null) continue;
+                        sprite.LayerSetVisible((WindowDamageLayers) val, false);
                     }
                     return;
                 }
-                foreach (WindowDamageLayers val in Enum.GetValues(typeof(WindowDamageLayers)))
+                foreach (var val in Enum.GetValues(typeof(WindowDamageLayers)))
                 {
-                    sprite.LayerSetVisible(val, true);
+                    if (val == null) continue;
+                    sprite.LayerSetVisible((WindowDamageLayers) val, true);
                 }
 
                 sprite.LayerSetState(WindowDamageLayers.DamageNE, $"{(int) lowWall.LastCornerNE}_{level}");
@@ -45,11 +50,11 @@ namespace Content.Client.GameObjects.Components
             }
         }
 
-        private static LowWallComponent FindLowWall(SnapGridComponent snapGrid)
+        private static LowWallComponent? FindLowWall(SnapGridComponent snapGrid)
         {
             foreach (var entity in snapGrid.GetLocal())
             {
-                if (entity.TryGetComponent(out LowWallComponent lowWall))
+                if (entity.TryGetComponent(out LowWallComponent? lowWall))
                 {
                     return lowWall;
                 }
diff --git a/Content.IntegrationTests/Tests/DummyIconTest.cs b/Content.IntegrationTests/Tests/DummyIconTest.cs
new file mode 100644
index 0000000000..4844a49237
--- /dev/null
+++ b/Content.IntegrationTests/Tests/DummyIconTest.cs
@@ -0,0 +1,35 @@
+#nullable enable
+using System.Linq;
+using System.Threading.Tasks;
+using NUnit.Framework;
+using Robust.Client.GameObjects;
+using Robust.Client.Interfaces.ResourceManagement;
+using Robust.Shared.GameObjects;
+using Robust.Shared.Prototypes;
+
+namespace Content.IntegrationTests.Tests
+{
+    [TestFixture]
+    public class DummyIconTest : ContentIntegrationTest
+    {
+        [Test]
+        public async Task Test()
+        {
+            var client = StartClient();
+            await client.WaitIdleAsync();
+
+            var prototypeManager = client.ResolveDependency<IPrototypeManager>();
+            var resourceCache = client.ResolveDependency<IResourceCache>();
+
+            await client.WaitAssertion(() =>
+            {
+                foreach (var proto in prototypeManager.EnumeratePrototypes<EntityPrototype>())
+                {
+                    if (!proto.Components.ContainsKey("Sprite")) continue;
+
+                    SpriteComponent.GetPrototypeTextures(proto, resourceCache).ToList();
+                }
+            });
+        }
+    }
+}