diff --git a/plugins/fancynpcs/implementation_1_21_6/src/main/java/de/oliver/fancynpcs/v1_21_6/attributes/CatAttributes.java b/plugins/fancynpcs/implementation_1_21_6/src/main/java/de/oliver/fancynpcs/v1_21_6/attributes/CatAttributes.java
index 578ed490..1ce945b5 100644
--- a/plugins/fancynpcs/implementation_1_21_6/src/main/java/de/oliver/fancynpcs/v1_21_6/attributes/CatAttributes.java
+++ b/plugins/fancynpcs/implementation_1_21_6/src/main/java/de/oliver/fancynpcs/v1_21_6/attributes/CatAttributes.java
@@ -6,9 +6,9 @@ import de.oliver.fancynpcs.v1_21_6.ReflectionHelper;
 import net.minecraft.core.Holder;
 import net.minecraft.core.HolderLookup;
 import net.minecraft.core.registries.Registries;
-import net.minecraft.data.registries.VanillaRegistries;
 import net.minecraft.resources.ResourceKey;
 import net.minecraft.resources.ResourceLocation;
+import net.minecraft.server.MinecraftServer;
 import net.minecraft.world.entity.animal.Cat;
 import net.minecraft.world.entity.animal.CatVariant;
 import net.minecraft.world.item.DyeColor;
@@ -82,10 +82,7 @@ public class CatAttributes {
     }
 
     private static HolderLookup.RegistryLookup<CatVariant> getCatVariantRegistry() {
-        return VanillaRegistries
-                .createLookup()
-                .lookup(Registries.CAT_VARIANT)
-                .orElseThrow();
+        return MinecraftServer.getServer().registryAccess().lookupOrThrow(Registries.CAT_VARIANT);
     }
 
     private static void setCollarColor(Npc npc, String value) {
diff --git a/plugins/fancynpcs/implementation_1_21_6/src/main/java/de/oliver/fancynpcs/v1_21_6/attributes/ChickenAttributes.java b/plugins/fancynpcs/implementation_1_21_6/src/main/java/de/oliver/fancynpcs/v1_21_6/attributes/ChickenAttributes.java
index a89c3ff9..59ad7c9b 100644
--- a/plugins/fancynpcs/implementation_1_21_6/src/main/java/de/oliver/fancynpcs/v1_21_6/attributes/ChickenAttributes.java
+++ b/plugins/fancynpcs/implementation_1_21_6/src/main/java/de/oliver/fancynpcs/v1_21_6/attributes/ChickenAttributes.java
@@ -6,9 +6,9 @@ import de.oliver.fancynpcs.v1_21_6.ReflectionHelper;
 import net.minecraft.core.Holder;
 import net.minecraft.core.HolderLookup;
 import net.minecraft.core.registries.Registries;
-import net.minecraft.data.registries.VanillaRegistries;
 import net.minecraft.resources.ResourceKey;
 import net.minecraft.resources.ResourceLocation;
+import net.minecraft.server.MinecraftServer;
 import net.minecraft.world.entity.animal.Chicken;
 import net.minecraft.world.entity.animal.ChickenVariant;
 import org.bukkit.entity.EntityType;
@@ -48,10 +48,7 @@ public class ChickenAttributes {
     }
 
     private static HolderLookup.RegistryLookup<ChickenVariant> getChickenVariantRegistry() {
-        return VanillaRegistries
-                .createLookup()
-                .lookup(Registries.CHICKEN_VARIANT)
-                .orElseThrow();
+        return MinecraftServer.getServer().registryAccess().lookupOrThrow(Registries.CHICKEN_VARIANT);
     }
 
 }
diff --git a/plugins/fancynpcs/implementation_1_21_6/src/main/java/de/oliver/fancynpcs/v1_21_6/attributes/CowAttributes.java b/plugins/fancynpcs/implementation_1_21_6/src/main/java/de/oliver/fancynpcs/v1_21_6/attributes/CowAttributes.java
index 70a7f74f..668133cf 100644
--- a/plugins/fancynpcs/implementation_1_21_6/src/main/java/de/oliver/fancynpcs/v1_21_6/attributes/CowAttributes.java
+++ b/plugins/fancynpcs/implementation_1_21_6/src/main/java/de/oliver/fancynpcs/v1_21_6/attributes/CowAttributes.java
@@ -6,9 +6,9 @@ import de.oliver.fancynpcs.v1_21_6.ReflectionHelper;
 import net.minecraft.core.Holder;
 import net.minecraft.core.HolderLookup;
 import net.minecraft.core.registries.Registries;
-import net.minecraft.data.registries.VanillaRegistries;
 import net.minecraft.resources.ResourceKey;
 import net.minecraft.resources.ResourceLocation;
+import net.minecraft.server.MinecraftServer;
 import net.minecraft.world.entity.animal.Cow;
 import net.minecraft.world.entity.animal.CowVariant;
 import org.bukkit.entity.EntityType;
@@ -48,10 +48,7 @@ public class CowAttributes {
     }
 
     private static HolderLookup.RegistryLookup<CowVariant> getCowVariantRegistry() {
-        return VanillaRegistries
-                .createLookup()
-                .lookup(Registries.COW_VARIANT)
-                .orElseThrow();
+        return MinecraftServer.getServer().registryAccess().lookupOrThrow(Registries.COW_VARIANT);
     }
 
 }
diff --git a/plugins/fancynpcs/implementation_1_21_6/src/main/java/de/oliver/fancynpcs/v1_21_6/attributes/FrogAttributes.java b/plugins/fancynpcs/implementation_1_21_6/src/main/java/de/oliver/fancynpcs/v1_21_6/attributes/FrogAttributes.java
index 36ba0dde..99f13552 100644
--- a/plugins/fancynpcs/implementation_1_21_6/src/main/java/de/oliver/fancynpcs/v1_21_6/attributes/FrogAttributes.java
+++ b/plugins/fancynpcs/implementation_1_21_6/src/main/java/de/oliver/fancynpcs/v1_21_6/attributes/FrogAttributes.java
@@ -6,9 +6,9 @@ import de.oliver.fancynpcs.v1_21_6.ReflectionHelper;
 import net.minecraft.core.Holder;
 import net.minecraft.core.HolderLookup;
 import net.minecraft.core.registries.Registries;
-import net.minecraft.data.registries.VanillaRegistries;
 import net.minecraft.resources.ResourceKey;
 import net.minecraft.resources.ResourceLocation;
+import net.minecraft.server.MinecraftServer;
 import net.minecraft.world.entity.animal.frog.Frog;
 import net.minecraft.world.entity.animal.frog.FrogVariant;
 import org.bukkit.entity.EntityType;
@@ -48,9 +48,6 @@ public class FrogAttributes {
     }
 
     private static HolderLookup.RegistryLookup<FrogVariant> getFrogVariantRegistry() {
-        return VanillaRegistries
-                .createLookup()
-                .lookup(Registries.FROG_VARIANT)
-                .orElseThrow();
+        return MinecraftServer.getServer().registryAccess().lookupOrThrow(Registries.FROG_VARIANT);
     }
 }
diff --git a/plugins/fancynpcs/implementation_1_21_6/src/main/java/de/oliver/fancynpcs/v1_21_6/attributes/HorseAttributes.java b/plugins/fancynpcs/implementation_1_21_6/src/main/java/de/oliver/fancynpcs/v1_21_6/attributes/HorseAttributes.java
index 7adec4c4..ee2ee8ac 100644
--- a/plugins/fancynpcs/implementation_1_21_6/src/main/java/de/oliver/fancynpcs/v1_21_6/attributes/HorseAttributes.java
+++ b/plugins/fancynpcs/implementation_1_21_6/src/main/java/de/oliver/fancynpcs/v1_21_6/attributes/HorseAttributes.java
@@ -68,17 +68,14 @@ public class HorseAttributes {
         switch (value.toLowerCase()) {
             case "standing" -> {
                 horse.setEating(false);
-                //TODO fix
-//                horse.setForceStanding(false);
+                horse.setStanding(0);
             }
             case "rearing" -> {
-                //TODO fix
-//                horse.setForceStanding(true);
+                horse.setStanding(20);
                 horse.setEating(false);
             }
             case "eating" -> {
-                //TODO fix
-//                horse.setForceStanding(false);
+                horse.setStanding(0);
                 horse.setEating(true);
             }
         }
diff --git a/plugins/fancynpcs/implementation_1_21_6/src/main/java/de/oliver/fancynpcs/v1_21_6/attributes/PigAttributes.java b/plugins/fancynpcs/implementation_1_21_6/src/main/java/de/oliver/fancynpcs/v1_21_6/attributes/PigAttributes.java
index 61ab8b02..ef372635 100644
--- a/plugins/fancynpcs/implementation_1_21_6/src/main/java/de/oliver/fancynpcs/v1_21_6/attributes/PigAttributes.java
+++ b/plugins/fancynpcs/implementation_1_21_6/src/main/java/de/oliver/fancynpcs/v1_21_6/attributes/PigAttributes.java
@@ -6,9 +6,9 @@ import de.oliver.fancynpcs.v1_21_6.ReflectionHelper;
 import net.minecraft.core.Holder;
 import net.minecraft.core.HolderLookup;
 import net.minecraft.core.registries.Registries;
-import net.minecraft.data.registries.VanillaRegistries;
 import net.minecraft.resources.ResourceKey;
 import net.minecraft.resources.ResourceLocation;
+import net.minecraft.server.MinecraftServer;
 import net.minecraft.world.entity.EquipmentSlot;
 import net.minecraft.world.entity.animal.Pig;
 import net.minecraft.world.entity.animal.PigVariant;
@@ -67,10 +67,7 @@ public class PigAttributes {
     }
 
     private static HolderLookup.RegistryLookup<PigVariant> getPigVariantRegistry() {
-        return VanillaRegistries
-                .createLookup()
-                .lookup(Registries.PIG_VARIANT)
-                .orElseThrow();
+        return MinecraftServer.getServer().registryAccess().lookupOrThrow(Registries.PIG_VARIANT);
     }
 
 }
diff --git a/plugins/fancynpcs/implementation_1_21_6/src/main/java/de/oliver/fancynpcs/v1_21_6/attributes/SnifferAttributes.java b/plugins/fancynpcs/implementation_1_21_6/src/main/java/de/oliver/fancynpcs/v1_21_6/attributes/SnifferAttributes.java
new file mode 100644
index 00000000..da750d27
--- /dev/null
+++ b/plugins/fancynpcs/implementation_1_21_6/src/main/java/de/oliver/fancynpcs/v1_21_6/attributes/SnifferAttributes.java
@@ -0,0 +1,36 @@
+package de.oliver.fancynpcs.v1_21_6.attributes;
+
+import de.oliver.fancynpcs.api.Npc;
+import de.oliver.fancynpcs.api.NpcAttribute;
+import de.oliver.fancynpcs.v1_21_6.ReflectionHelper;
+import net.minecraft.world.entity.animal.sniffer.Sniffer;
+import org.bukkit.entity.EntityType;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+public class SnifferAttributes {
+
+    public static List<NpcAttribute> getAllAttributes() {
+        List<NpcAttribute> attributes = new ArrayList<>();
+
+        attributes.add(new NpcAttribute(
+                "state",
+                Arrays.stream(Sniffer.State.values())
+                        .map(Enum::name)
+                        .toList(),
+                List.of(EntityType.SNIFFER),
+                SnifferAttributes::setState
+        ));
+
+        return attributes;
+    }
+
+    private static void setState(Npc npc, String value) {
+        final Sniffer sniffer = ReflectionHelper.getEntity(npc);
+
+        Sniffer.State state = Sniffer.State.valueOf(value.toUpperCase());
+        sniffer.transitionTo(state);
+    }
+}
diff --git a/plugins/fancynpcs/implementation_1_21_6/src/main/java/de/oliver/fancynpcs/v1_21_6/attributes/WolfAttributes.java b/plugins/fancynpcs/implementation_1_21_6/src/main/java/de/oliver/fancynpcs/v1_21_6/attributes/WolfAttributes.java
index 75872ac0..710e6601 100644
--- a/plugins/fancynpcs/implementation_1_21_6/src/main/java/de/oliver/fancynpcs/v1_21_6/attributes/WolfAttributes.java
+++ b/plugins/fancynpcs/implementation_1_21_6/src/main/java/de/oliver/fancynpcs/v1_21_6/attributes/WolfAttributes.java
@@ -7,8 +7,8 @@ import net.minecraft.core.Holder;
 import net.minecraft.core.HolderLookup;
 import net.minecraft.core.Registry;
 import net.minecraft.core.registries.Registries;
-import net.minecraft.data.registries.VanillaRegistries;
 import net.minecraft.resources.ResourceLocation;
+import net.minecraft.server.MinecraftServer;
 import net.minecraft.world.entity.animal.wolf.Wolf;
 import net.minecraft.world.entity.animal.wolf.WolfVariant;
 import net.minecraft.world.item.DyeColor;
@@ -122,9 +122,6 @@ public class WolfAttributes {
     }
 
     private static HolderLookup.RegistryLookup<WolfVariant> getWolfVariantRegistry() {
-        return VanillaRegistries
-                .createLookup()
-                .lookup(Registries.WOLF_VARIANT)
-                .orElseThrow();
+        return MinecraftServer.getServer().registryAccess().lookupOrThrow(Registries.WOLF_VARIANT);
     }
 }
diff --git a/plugins/fancynpcs/src/main/java/de/oliver/fancynpcs/AttributeManagerImpl.java b/plugins/fancynpcs/src/main/java/de/oliver/fancynpcs/AttributeManagerImpl.java
index 7c42ae6c..5326f70e 100644
--- a/plugins/fancynpcs/src/main/java/de/oliver/fancynpcs/AttributeManagerImpl.java
+++ b/plugins/fancynpcs/src/main/java/de/oliver/fancynpcs/AttributeManagerImpl.java
@@ -30,7 +30,7 @@ public class AttributeManagerImpl implements AttributeManager {
     private void init() {
         String mcVersion = Bukkit.getMinecraftVersion();
         switch (mcVersion) {
-            case "1.21.6" -> attributes = Attributes_1_21_6.getAllAttributes();
+            case "1.21.6 Release Candidate 1" -> attributes = Attributes_1_21_6.getAllAttributes();
             case "1.21.5" -> attributes = Attributes_1_21_5.getAllAttributes();
             case "1.21.4" -> attributes = Attributes_1_21_4.getAllAttributes();
             case "1.21.2", "1.21.3" -> attributes = Attributes_1_21_3.getAllAttributes();
diff --git a/plugins/fancynpcs/src/main/java/de/oliver/fancynpcs/FancyNpcs.java b/plugins/fancynpcs/src/main/java/de/oliver/fancynpcs/FancyNpcs.java
index 9361c2e4..fe15151f 100644
--- a/plugins/fancynpcs/src/main/java/de/oliver/fancynpcs/FancyNpcs.java
+++ b/plugins/fancynpcs/src/main/java/de/oliver/fancynpcs/FancyNpcs.java
@@ -155,7 +155,7 @@ public class FancyNpcs extends JavaPlugin implements FancyNpcsPlugin {
         String mcVersion = Bukkit.getMinecraftVersion();
 
         switch (mcVersion) {
-            case "1.21.6" -> npcAdapter = Npc_1_21_6::new;
+            case "1.21.6 Release Candidate 1" -> npcAdapter = Npc_1_21_6::new;
             case "1.21.5" -> npcAdapter = Npc_1_21_5::new;
             case "1.21.4" -> npcAdapter = Npc_1_21_4::new;
             case "1.21.2", "1.21.3" -> npcAdapter = Npc_1_21_3::new;