diff --git a/main/src/main/java/net/citizensnpcs/commands/NPCCommands.java b/main/src/main/java/net/citizensnpcs/commands/NPCCommands.java
index 3d8e43603..208f8da81 100644
--- a/main/src/main/java/net/citizensnpcs/commands/NPCCommands.java
+++ b/main/src/main/java/net/citizensnpcs/commands/NPCCommands.java
@@ -912,8 +912,8 @@ else if (!EntityControllers.controllerExistsForType(type))
             for (String part : parts) {
                 if (part.contains(":")) {
                     int idx = part.indexOf(':');
-                    Template template = templateRegistry.getTemplateByKey(
-                            new NamespacedKey(part.substring(0, idx), part.substring(idx + 1).toLowerCase(Locale.US)));
+                    Template template = templateRegistry.getTemplateByKey(new NamespacedKey(part.substring(0, idx),
+                            part.substring(idx + 1).toLowerCase(Locale.ROOT)));
                     if (template == null)
                         continue;
                     template.apply(npc);
@@ -1263,7 +1263,7 @@ public void hitbox(CommandContext args, CommandSender sender, NPC npc, @Flag("sc
 
     @Command(
             aliases = { "npc" },
-            usage = "hologram add [text] | set [line #] [text] | remove [line #] | bgcolor [line #] (color) | clear | lineheight [height] | viewrange [range] | margintop [line #] [margin] | marginbottom [line #] [margin]",
+            usage = "hologram add [text] | set [line #] [text] | remove [line #] | bgcolor [line #] (red,green,blue(,alpha)) | clear | lineheight [height] | viewrange [range] | margintop [line #] [margin] | marginbottom [line #] [margin]",
             desc = "",
             modifiers = { "hologram" },
             min = 1,
@@ -3661,7 +3661,7 @@ public void wolf(CommandContext args, CommandSender sender, NPC npc, @Flag("coll
             trait.setInterested(!trait.isInterested());
         }
         if (variant != null) {
-            variant = variant.toUpperCase(Locale.US);
+            variant = variant.toUpperCase(Locale.ROOT);
             try {
                 Wolf.Variant.class.getField(variant);
             } catch (Throwable t) {
diff --git a/main/src/main/java/net/citizensnpcs/commands/TemplateCommands.java b/main/src/main/java/net/citizensnpcs/commands/TemplateCommands.java
index 2ff3195e6..1280d4b8f 100644
--- a/main/src/main/java/net/citizensnpcs/commands/TemplateCommands.java
+++ b/main/src/main/java/net/citizensnpcs/commands/TemplateCommands.java
@@ -44,7 +44,7 @@ public void apply(CommandContext args, CommandSender sender, NPC npc,
         if (templateKey.contains(":")) {
             int idx = templateKey.indexOf(':');
             template = registry.getTemplateByKey(new NamespacedKey(templateKey.substring(0, idx),
-                    templateKey.substring(idx + 1).toLowerCase(Locale.US)));
+                    templateKey.substring(idx + 1).toLowerCase(Locale.ROOT)));
         } else {
             Collection<Template> templates = registry.getTemplates(templateKey);
             if (templates.isEmpty())
@@ -73,9 +73,9 @@ public void generate(CommandContext args, CommandSender sender, NPC npc,
             @Arg(value = 1, completionsProvider = TemplateCompletions.class) String templateName)
             throws CommandException {
         int idx = templateName.indexOf(':');
-        NamespacedKey key = idx == -1 ? new NamespacedKey("generated", templateName.toLowerCase(Locale.US))
+        NamespacedKey key = idx == -1 ? new NamespacedKey("generated", templateName.toLowerCase(Locale.ROOT))
                 : new NamespacedKey(templateName.substring(0, idx),
-                        templateName.substring(idx + 1).toLowerCase(Locale.US));
+                        templateName.substring(idx + 1).toLowerCase(Locale.ROOT));
         if (registry.getTemplateByKey(key) != null)
             throw new CommandException(Messages.TEMPLATE_CONFLICT);
         registry.generateTemplateFromNPC(key, npc);
diff --git a/main/src/main/java/net/citizensnpcs/npc/CitizensNPC.java b/main/src/main/java/net/citizensnpcs/npc/CitizensNPC.java
index cc967cd15..d42422a09 100644
--- a/main/src/main/java/net/citizensnpcs/npc/CitizensNPC.java
+++ b/main/src/main/java/net/citizensnpcs/npc/CitizensNPC.java
@@ -20,7 +20,7 @@
 
 import com.google.common.base.Throwables;
 import com.google.common.collect.HashMultimap;
-import com.google.common.collect.Iterables;
+import com.google.common.collect.ObjectArrays;
 import com.google.common.collect.SetMultimap;
 
 import net.citizensnpcs.NPCNeedsRespawnEvent;
@@ -381,7 +381,8 @@ public void accept(Runnable cancel) {
                     return;
                 }
                 navigator.onSpawn();
-                for (Trait trait : Iterables.toArray(traits.values(), Trait.class)) {
+
+                for (Trait trait : traits.values().toArray(ObjectArrays.newArray(Trait.class, traits.size()))) {
                     try {
                         trait.onSpawn();
                     } catch (Throwable ex) {
@@ -389,7 +390,6 @@ public void accept(Runnable cancel) {
                         ex.printStackTrace();
                     }
                 }
-                // Replace the entity tracker
                 NMS.replaceTracker(getEntity());
                 EntityType type = getEntity().getType();
                 if (type.isAlive()) {
@@ -479,21 +479,21 @@ public void update() {
                 resetCachedCoord();
                 return;
             }
+            Location loc = getEntity().getLocation();
             if (data().has(NPC.Metadata.ACTIVATION_RANGE)) {
                 int range = data().get(NPC.Metadata.ACTIVATION_RANGE);
-                if (range == -1 || CitizensAPI.getLocationLookup().getNearbyPlayers(getStoredLocation(), range)
-                        .iterator().hasNext()) {
+                if (range == -1 || CitizensAPI.getLocationLookup().getNearbyPlayers(loc, range).iterator().hasNext()) {
                     NMS.activate(getEntity());
                 }
             }
             boolean shouldSwim = data().get(NPC.Metadata.SWIM, SwimmingExaminer.isWaterMob(getEntity()))
-                    && MinecraftBlockExaminer.isLiquid(getEntity().getLocation().getBlock().getType());
+                    && MinecraftBlockExaminer.isLiquid(loc.getBlock().getType());
             if (navigator.isNavigating()) {
                 if (shouldSwim) {
                     getEntity().setVelocity(getEntity().getVelocity().multiply(
                             data().get(NPC.Metadata.WATER_SPEED_MODIFIER, Setting.NPC_WATER_SPEED_MODIFIER.asFloat())));
                     Location currentDest = navigator.getPathStrategy().getCurrentDestination();
-                    if (currentDest == null || currentDest.getY() > getStoredLocation().getY()) {
+                    if (currentDest == null || currentDest.getY() > loc.getY()) {
                         NMS.trySwim(getEntity());
                     }
                 }
@@ -504,23 +504,15 @@ public void update() {
                 }
             }
             if (SUPPORT_GLOWING && data().has(NPC.Metadata.GLOWING)) {
-                try {
-                    getEntity().setGlowing(data().get(NPC.Metadata.GLOWING, false));
-                } catch (NoSuchMethodError e) {
-                    SUPPORT_GLOWING = false;
-                }
+                getEntity().setGlowing(data().get(NPC.Metadata.GLOWING, false));
             }
             if (SUPPORT_SILENT && data().has(NPC.Metadata.SILENT)) {
-                try {
-                    getEntity().setSilent(Boolean.parseBoolean(data().get(NPC.Metadata.SILENT).toString()));
-                } catch (NoSuchMethodError e) {
-                    SUPPORT_SILENT = false;
-                }
+                getEntity().setSilent(Boolean.parseBoolean(data().get(NPC.Metadata.SILENT).toString()));
             }
             boolean isLiving = getEntity() instanceof LivingEntity;
             if (isUpdating(NPCUpdate.PACKET)) {
                 if (data().get(NPC.Metadata.KEEP_CHUNK_LOADED, Setting.KEEP_CHUNKS_LOADED.asBoolean())) {
-                    ChunkCoord currentCoord = new ChunkCoord(getStoredLocation());
+                    ChunkCoord currentCoord = new ChunkCoord(loc);
                     if (!currentCoord.equals(cachedCoord)) {
                         resetCachedCoord();
                         currentCoord.setForceLoaded(true);
@@ -538,11 +530,7 @@ public void update() {
             if (isLiving) {
                 NMS.setKnockbackResistance((LivingEntity) getEntity(), isProtected() ? 1D : 0D);
                 if (SUPPORT_PICKUP_ITEMS) {
-                    try {
-                        ((LivingEntity) getEntity()).setCanPickupItems(data().get(NPC.Metadata.PICKUP_ITEMS, false));
-                    } catch (Throwable t) {
-                        SUPPORT_PICKUP_ITEMS = false;
-                    }
+                    ((LivingEntity) getEntity()).setCanPickupItems(data().get(NPC.Metadata.PICKUP_ITEMS, false));
                 }
                 if (getEntity() instanceof Player) {
                     updateUsingItemState((Player) getEntity());
@@ -622,9 +610,31 @@ private void updateUsingItemState(Player player) {
     }
 
     private static SetMultimap<ChunkCoord, NPC> CHUNK_LOADERS = HashMultimap.create();
-    private static boolean SUPPORT_GLOWING = true;
-    private static boolean SUPPORT_NODAMAGE_TICKS = true;
-    private static boolean SUPPORT_PICKUP_ITEMS = true;
-    private static boolean SUPPORT_SILENT = true;
+    private static boolean SUPPORT_GLOWING = false;
+    private static boolean SUPPORT_NODAMAGE_TICKS = false;
+    private static boolean SUPPORT_PICKUP_ITEMS = false;
+    private static boolean SUPPORT_SILENT = false;
     private static boolean SUPPORT_USE_ITEM = true;
+    static {
+        try {
+            Entity.class.getMethod("setNoDamageTicks", int.class);
+            SUPPORT_NODAMAGE_TICKS = true;
+        } catch (NoSuchMethodException | SecurityException e) {
+        }
+        try {
+            Entity.class.getMethod("setGlowing", boolean.class);
+            SUPPORT_GLOWING = true;
+        } catch (NoSuchMethodException | SecurityException e) {
+        }
+        try {
+            Entity.class.getMethod("setSilent", boolean.class);
+            SUPPORT_SILENT = true;
+        } catch (NoSuchMethodException | SecurityException e) {
+        }
+        try {
+            LivingEntity.class.getMethod("setCanPickupItems", boolean.class);
+            SUPPORT_PICKUP_ITEMS = true;
+        } catch (NoSuchMethodException | SecurityException e) {
+        }
+    }
 }
diff --git a/main/src/main/java/net/citizensnpcs/npc/CitizensTraitFactory.java b/main/src/main/java/net/citizensnpcs/npc/CitizensTraitFactory.java
index 7d0edb576..d71ed8c9c 100644
--- a/main/src/main/java/net/citizensnpcs/npc/CitizensTraitFactory.java
+++ b/main/src/main/java/net/citizensnpcs/npc/CitizensTraitFactory.java
@@ -177,7 +177,7 @@ public <T extends Trait> T getTrait(Class<T> clazz) {
     @Override
     @SuppressWarnings("unchecked")
     public <T extends Trait> T getTrait(String name) {
-        TraitInfo info = registered.get(name.toLowerCase(Locale.US));
+        TraitInfo info = registered.get(name.toLowerCase(Locale.ROOT));
         if (info == null)
             return null;
         return (T) create(info);
@@ -185,7 +185,7 @@ public <T extends Trait> T getTrait(String name) {
 
     @Override
     public Class<? extends Trait> getTraitClass(String name) {
-        TraitInfo info = registered.get(name.toLowerCase(Locale.US));
+        TraitInfo info = registered.get(name.toLowerCase(Locale.ROOT));
         return info == null ? null : info.getTraitClass();
     }
 
diff --git a/main/src/main/java/net/citizensnpcs/trait/HorseModifiers.java b/main/src/main/java/net/citizensnpcs/trait/HorseModifiers.java
index 0d049a049..9cb51c31f 100644
--- a/main/src/main/java/net/citizensnpcs/trait/HorseModifiers.java
+++ b/main/src/main/java/net/citizensnpcs/trait/HorseModifiers.java
@@ -1,7 +1,5 @@
 package net.citizensnpcs.trait;
 
-import java.lang.invoke.MethodHandle;
-
 import org.bukkit.entity.ChestedHorse;
 import org.bukkit.entity.Horse;
 import org.bukkit.entity.Horse.Color;
@@ -111,22 +109,19 @@ private void updateModifiers() {
             horse.getInventory().setArmor(armor);
             horse.getInventory().setSaddle(saddle);
         }
-        if (CARRYING_CHEST_METHOD == null)
-            return;
-        if (npc.getEntity() instanceof ChestedHorse) {
-            try {
-                CARRYING_CHEST_METHOD.invoke(npc.getEntity(), carryingChest);
-            } catch (Throwable e) {
-            }
+        if (SUPPORTS_CARRYING_CHEST && npc.getEntity() instanceof ChestedHorse) {
+            ((ChestedHorse) npc.getEntity()).setCarryingChest(carryingChest);
         }
     }
 
-    private static MethodHandle CARRYING_CHEST_METHOD;
+    private static boolean SUPPORTS_CARRYING_CHEST;
 
     static {
         try {
-            CARRYING_CHEST_METHOD = NMS.getMethodHandle(Class.forName("org.bukkit.entity.ChestedHorse"),
-                    "setCarryingChest", false, boolean.class);
+            if (NMS.getMethodHandle(Class.forName("org.bukkit.entity.ChestedHorse"), "setCarryingChest", false,
+                    boolean.class) != null) {
+                SUPPORTS_CARRYING_CHEST = true;
+            }
         } catch (Throwable e) {
         }
     }
diff --git a/main/src/main/java/net/citizensnpcs/util/NMS.java b/main/src/main/java/net/citizensnpcs/util/NMS.java
index 7da35f9b5..001d4cce6 100644
--- a/main/src/main/java/net/citizensnpcs/util/NMS.java
+++ b/main/src/main/java/net/citizensnpcs/util/NMS.java
@@ -6,6 +6,7 @@
 import java.lang.reflect.Method;
 import java.lang.reflect.Modifier;
 import java.util.Collection;
+import java.util.Collections;
 import java.util.List;
 import java.util.Map;
 import java.util.UUID;
@@ -273,7 +274,7 @@ private static List<Field> getFieldsMatchingType(Class<?> clazz, Class<?> type,
     public static List<MethodHandle> getFieldsOfType(Class<?> clazz, Class<?> type) {
         List<Field> found = getFieldsMatchingType(clazz, type, false);
         if (found.isEmpty())
-            return null;
+            return Collections.emptyList();
         return found.stream().map(f -> {
             try {
                 return LOOKUP.unreflectGetter(f);
@@ -585,6 +586,20 @@ public static MethodHandle getSetter(Class<?> clazz, String name, boolean log) {
         return null;
     }
 
+    public static Collection<MethodHandle> getSettersOfType(Class<?> clazz, Class<?> fieldType) {
+        List<Field> found = getFieldsMatchingType(clazz, fieldType, false);
+        if (found.isEmpty())
+            return Collections.emptyList();
+        return found.stream().map(f -> {
+            try {
+                return LOOKUP.unreflectSetter(f);
+            } catch (Throwable e) {
+                e.printStackTrace();
+            }
+            return null;
+        }).filter(f -> f != null).collect(Collectors.toList());
+    }
+
     public static String getSoundPath(Sound flag) throws CommandException {
         return BRIDGE.getSoundPath(flag);
     }
@@ -988,7 +1003,6 @@ public static void updatePathfindingRange(NPC npc, float pathfindingRange) {
     private static MethodHandle UNSAFE_PUT_INT;
     private static MethodHandle UNSAFE_PUT_LONG;
     private static MethodHandle UNSAFE_PUT_OBJECT;
-
     private static MethodHandle UNSAFE_STATIC_FIELD_OFFSET;
 
     static {
diff --git a/main/src/main/java/net/citizensnpcs/util/Util.java b/main/src/main/java/net/citizensnpcs/util/Util.java
index 470e7aae2..60823a459 100644
--- a/main/src/main/java/net/citizensnpcs/util/Util.java
+++ b/main/src/main/java/net/citizensnpcs/util/Util.java
@@ -333,7 +333,7 @@ public static boolean isOffHand(PlayerInteractEvent event) {
     }
 
     public static String listValuesPretty(Object[] values) {
-        return "<yellow>" + Joiner.on("<green>, <yellow>").join(values).replace('_', ' ').toLowerCase(Locale.US);
+        return "<yellow>" + Joiner.on("<green>, <yellow>").join(values).replace('_', ' ').toLowerCase(Locale.ROOT);
     }
 
     public static <T extends Enum<?>> T matchEnum(T[] values, String toMatch) {
@@ -345,7 +345,7 @@ public static <T extends Enum<?>> T matchEnum(T[] values, String toMatch) {
 
         }
         for (T check : values) {
-            String name = check.name().toLowerCase(Locale.US);
+            String name = check.name().toLowerCase(Locale.ROOT);
             if (name.replace("_", "").equals(toMatch) || name.startsWith(toMatch))
                 return check;
 
@@ -422,7 +422,7 @@ public static int parseTicks(String raw) {
     }
 
     public static String prettyEnum(Enum<?> e) {
-        return e.name().toLowerCase(Locale.US).replace('_', ' ');
+        return e.name().toLowerCase(Locale.ROOT).replace('_', ' ');
     }
 
     public static String prettyPrintLocation(Location to) {
diff --git a/v1_21_R1/src/main/java/net/citizensnpcs/nms/v1_21_R1/util/NMSImpl.java b/v1_21_R1/src/main/java/net/citizensnpcs/nms/v1_21_R1/util/NMSImpl.java
index 8b919c7c9..bae2e02db 100644
--- a/v1_21_R1/src/main/java/net/citizensnpcs/nms/v1_21_R1/util/NMSImpl.java
+++ b/v1_21_R1/src/main/java/net/citizensnpcs/nms/v1_21_R1/util/NMSImpl.java
@@ -626,9 +626,19 @@ public NPC getNPC(org.bukkit.entity.Entity entity) {
     @Override
     public EntityPacketTracker getPacketTracker(org.bukkit.entity.Entity entity) {
         ServerLevel server = (ServerLevel) getHandle(entity).level();
-        TrackedEntity entry = server.getChunkSource().chunkMap.entityMap.get(entity.getEntityId());
-        if (entry == null)
+        TrackedEntity tracked = null;
+        if (TRACKED_ENTITY_GETTER != null) {
+            try {
+                tracked = (TrackedEntity) TRACKED_ENTITY_GETTER.invoke(getHandle(entity));
+            } catch (Throwable e) {
+                e.printStackTrace();
+            }
+        } else {
+            tracked = server.getChunkSource().chunkMap.entityMap.get(entity.getEntityId());
+        }
+        if (tracked == null)
             return null;
+        TrackedEntity entry = tracked;
         return new EntityPacketTracker() {
             @Override
             public void link(Player player) {
@@ -1335,7 +1345,16 @@ public void removeHookIfNecessary(FishHook entity) {
 
     @Override
     public void replaceTrackerEntry(org.bukkit.entity.Entity entity) {
-        ServerLevel server = (ServerLevel) getHandle(entity).level();
+        Entity handle = getHandle(entity);
+        ServerLevel server = (ServerLevel) handle.level();
+        for (MethodHandle setter : TRACKED_ENTITY_SETTERS) {
+            try {
+                setter.invoke(handle, new CitizensEntityTracker(server.getChunkSource().chunkMap,
+                        (TrackedEntity) TRACKED_ENTITY_GETTER.invoke(handle)));
+            } catch (Throwable e) {
+                e.printStackTrace();
+            }
+        }
         TrackedEntity entry = server.getChunkSource().chunkMap.entityMap.get(entity.getEntityId());
         if (entry == null)
             return;
@@ -2520,7 +2539,9 @@ public static void updateMinecraftAIState(NPC npc, Mob entity) {
 
     private static final MethodHandle ADVANCEMENTS_PLAYER_SETTER = NMS.getFirstFinalSetter(ServerPlayer.class,
             PlayerAdvancements.class);
+
     private static final MethodHandle ARMADILLO_SCUTE_TIME = NMS.getSetter(Armadillo.class, "cn");
+
     private static final MethodHandle ATTRIBUTE_PROVIDER_MAP = NMS.getFirstGetter(AttributeSupplier.class, Map.class);
     private static final MethodHandle ATTRIBUTE_PROVIDER_MAP_SETTER = NMS.getFirstFinalSetter(AttributeSupplier.class,
             Map.class);
@@ -2572,10 +2593,10 @@ public static void updateMinecraftAIState(NPC npc, Mob entity) {
     private static final MethodHandle NAVIGATION_CREATE_PATHFINDER = NMS
             .getFirstMethodHandleWithReturnType(PathNavigation.class, true, PathFinder.class, int.class);
     private static final MethodHandle NAVIGATION_PATH = NMS.getFirstGetter(PathNavigation.class, Path.class);
-
     private static final MethodHandle NAVIGATION_PATHFINDER = NMS.getFirstFinalSetter(PathNavigation.class,
             PathFinder.class);
     private static final MethodHandle NAVIGATION_WORLD_FIELD = NMS.getFirstSetter(PathNavigation.class, Level.class);
+
     private static final MethodHandle PLAYER_INFO_ENTRIES_LIST = NMS
             .getFirstFinalSetter(ClientboundPlayerInfoUpdatePacket.class, List.class);
     private static final MethodHandle PLAYERINFO_ENTRIES = PLAYER_INFO_ENTRIES_LIST;
@@ -2592,6 +2613,9 @@ public static void updateMinecraftAIState(NPC npc, Mob entity) {
     private static final MethodHandle SIZE_FIELD_SETTER = NMS.getFirstSetter(Entity.class, EntityDimensions.class);
     private static MethodHandle SKULL_META_PROFILE;
     private static MethodHandle TEAM_FIELD;
+    private static final MethodHandle TRACKED_ENTITY_GETTER = NMS.getFirstGetter(Entity.class, TrackedEntity.class);
+    private static final Collection<MethodHandle> TRACKED_ENTITY_SETTERS = NMS.getSettersOfType(Entity.class,
+            TrackedEntity.class);
     static {
         try {
             ENTITY_REGISTRY = new CustomEntityRegistry(BuiltInRegistries.ENTITY_TYPE);