diff --git a/common/src/main/java/com/viaversion/viabackwards/api/rewriters/BackwardsStructuredItemRewriter.java b/common/src/main/java/com/viaversion/viabackwards/api/rewriters/BackwardsStructuredItemRewriter.java
index 80eac348..6f952827 100644
--- a/common/src/main/java/com/viaversion/viabackwards/api/rewriters/BackwardsStructuredItemRewriter.java
+++ b/common/src/main/java/com/viaversion/viabackwards/api/rewriters/BackwardsStructuredItemRewriter.java
@@ -95,7 +95,7 @@ public class BackwardsStructuredItemRewriter<C extends ClientboundPacketType, S
         // Set custom name - only done if there is no original one
         if (!data.contains(StructuredDataKey.CUSTOM_NAME)) {
             data.set(StructuredDataKey.CUSTOM_NAME, mappedItem.tagName());
-            tag.putBoolean(nbtTagName + "|customName", true);
+            tag.putBoolean(getNbtTagName() + "|customName", true);
         }
         return item;
     }
@@ -152,7 +152,7 @@ public class BackwardsStructuredItemRewriter<C extends ClientboundPacketType, S
         }
 
         // Remove custom name
-        if (customData.value().remove(nbtTagName + "|customName") != null) {
+        if (customData.value().remove(getNbtTagName() + "|customName") != null) {
             data.remove(StructuredDataKey.CUSTOM_NAME);
         } else {
             final Tag name = removeBackupTag(customData.value(), "Name");
@@ -163,13 +163,13 @@ public class BackwardsStructuredItemRewriter<C extends ClientboundPacketType, S
     }
 
     protected void saveTag(CompoundTag customData, Tag tag, String name) {
-        String backupName = nbtTagName + "|o" + name;
+        String backupName = getNbtTagName() + "|o" + name;
         if (!customData.contains(backupName)) {
             customData.put(backupName, tag);
         }
     }
 
     protected @Nullable Tag removeBackupTag(CompoundTag customData, String tagName) {
-        return customData.remove(nbtTagName + "|o" + tagName);
+        return customData.remove(getNbtTagName() + "|o" + tagName);
     }
 }
diff --git a/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_20_3to1_20_5/Protocol1_20_3To1_20_5.java b/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_20_3to1_20_5/Protocol1_20_3To1_20_5.java
index 592f66f5..c5ba09b7 100644
--- a/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_20_3to1_20_5/Protocol1_20_3To1_20_5.java
+++ b/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_20_3to1_20_5/Protocol1_20_3To1_20_5.java
@@ -123,7 +123,22 @@ public final class Protocol1_20_3To1_20_5 extends BackwardsProtocol<ClientboundP
             wrapper.write(Type.BOOLEAN, wrapper.user().get(SecureChatStorage.class).enforcesSecureChat());
         });
 
+        registerServerbound(ServerboundPackets1_20_3.CHAT_COMMAND, ServerboundPackets1_20_5.CHAT_COMMAND_SIGNED, wrapper -> {
+            System.out.println(wrapper.passthrough(Type.STRING)); // Command
+            wrapper.passthrough(Type.LONG); // Timestamp
+            wrapper.passthrough(Type.LONG); // Salt
+
+            final Integer passthrough = wrapper.passthrough(Type.VAR_INT);
+            System.out.println(passthrough);
+            if (passthrough != 0) {
+                return;
+            }
+            System.out.println(wrapper.passthrough(Type.VAR_INT));
+            System.out.println(wrapper.passthrough(Type.ACKNOWLEDGED_BIT_SET));
+        });
+
         registerClientbound(State.LOGIN, ClientboundLoginPackets.COOKIE_REQUEST.getId(), -1, wrapper -> handleCookieRequest(wrapper, ServerboundLoginPackets.COOKIE_RESPONSE));
+        cancelClientbound(ClientboundConfigurationPackets1_20_5.RESET_CHAT); // Old clients already reset chat when entering the configuration phase
         registerClientbound(ClientboundConfigurationPackets1_20_5.COOKIE_REQUEST, null, wrapper -> handleCookieRequest(wrapper, ServerboundConfigurationPackets1_20_5.COOKIE_RESPONSE));
         registerClientbound(ClientboundConfigurationPackets1_20_5.STORE_COOKIE, null, this::handleStoreCookie);
         registerClientbound(ClientboundConfigurationPackets1_20_5.TRANSFER, null, this::handleTransfer);
diff --git a/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_20_3to1_20_5/rewriter/EntityPacketRewriter1_20_5.java b/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_20_3to1_20_5/rewriter/EntityPacketRewriter1_20_5.java
index 314e9dfd..ea053d34 100644
--- a/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_20_3to1_20_5/rewriter/EntityPacketRewriter1_20_5.java
+++ b/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_20_3to1_20_5/rewriter/EntityPacketRewriter1_20_5.java
@@ -101,7 +101,9 @@ public final class EntityPacketRewriter1_20_5 extends EntityRewriter<Clientbound
                             Preconditions.checkNotNull(entry.tag(), "Server unexpectedly sent null dimension data for " + entry.key());
 
                             final String dimensionKey = Key.stripMinecraftNamespace(entry.key());
-                            dimensionDataMap.put(dimensionKey, new DimensionDataImpl(i, (CompoundTag) entry.tag()));
+                            final CompoundTag tag = (CompoundTag) entry.tag();
+                            updateDimensionTypeData(tag);
+                            dimensionDataMap.put(dimensionKey, new DimensionDataImpl(i, tag));
                             keys[i] = dimensionKey;
                         }
                         registryDataStorage.setDimensionKeys(keys);
@@ -246,6 +248,16 @@ public final class EntityPacketRewriter1_20_5 extends EntityRewriter<Clientbound
         });
     }
 
+    private void updateDimensionTypeData(final CompoundTag elementTag) {
+        final CompoundTag monsterSpawnLightLevel = elementTag.getCompoundTag("monster_spawn_light_level");
+        if (monsterSpawnLightLevel != null) {
+            final CompoundTag value = new CompoundTag();
+            monsterSpawnLightLevel.put("value", value);
+            value.putInt("min_inclusive", monsterSpawnLightLevel.getInt("min_inclusive"));
+            value.putInt("max_inclusive", monsterSpawnLightLevel.getInt("max_inclusive"));
+        }
+    }
+
     @Override
     protected void registerRewrites() {
         filter().mapMetaType(typeId -> {
@@ -289,6 +301,7 @@ public final class EntityPacketRewriter1_20_5 extends EntityRewriter<Clientbound
         filter().type(EntityTypes1_20_5.LLAMA).addIndex(20); // Carpet color
         filter().type(EntityTypes1_20_5.ARMADILLO).removeIndex(17); // State
         filter().type(EntityTypes1_20_5.WOLF).removeIndex(22); // Wolf variant
+        filter().type(EntityTypes1_20_5.OMINOUS_ITEM_SPAWNER).removeIndex(8); // Item
     }
 
     @Override
@@ -306,6 +319,7 @@ public final class EntityPacketRewriter1_20_5 extends EntityRewriter<Clientbound
         mapEntityTypeWithData(EntityTypes1_20_5.ARMADILLO, EntityTypes1_20_5.COW).tagName();
         mapEntityTypeWithData(EntityTypes1_20_5.BOGGED, EntityTypes1_20_5.STRAY).tagName();
         mapEntityTypeWithData(EntityTypes1_20_5.BREEZE_WIND_CHARGE, EntityTypes1_20_5.WIND_CHARGE);
+        mapEntityTypeWithData(EntityTypes1_20_5.OMINOUS_ITEM_SPAWNER, EntityTypes1_20_5.TEXT_DISPLAY);
     }
 
     @Override
diff --git a/common/src/main/resources/assets/viabackwards/data/mappings-1.20.5to1.20.3.nbt b/common/src/main/resources/assets/viabackwards/data/mappings-1.20.5to1.20.3.nbt
index db3c076a..05291b98 100644
Binary files a/common/src/main/resources/assets/viabackwards/data/mappings-1.20.5to1.20.3.nbt and b/common/src/main/resources/assets/viabackwards/data/mappings-1.20.5to1.20.3.nbt differ
diff --git a/gradle.properties b/gradle.properties
index e8d8df35..930271c4 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,4 +1,4 @@
-projectVersion=4.10.0-24w12a-SNAPSHOT
+projectVersion=4.10.0-24w13a-SNAPSHOT
 
 # Smile emoji
 mcVersions=1.20.4, 1.20.3, 1.20.2, 1.20.1, 1.20, 1.19.4, 1.19.3, 1.19.2, 1.19.1, 1.19, 1.18.2, 1.18.1, 1.18, 1.17.1, 1.17, 1.16.5, 1.16.4, 1.16.3, 1.16.2, 1.16.1, 1.16, 1.15.2, 1.15.1, 1.15, 1.14.4, 1.14.3, 1.14.2, 1.14.1, 1.14, 1.13.2, 1.13.1, 1.13, 1.12.2, 1.12.1, 1.12, 1.11.2, 1.11.1, 1.11, 1.10.2, 1.10.1, 1.10
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 0ea6442e..2a3fb0c5 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -3,7 +3,7 @@ metadata.format.version = "1.1"
 [versions]
 
 # ViaVersion
-viaver = "4.10.0-24w11a-SNAPSHOT"
+viaver = "4.10.0-24w13a-SNAPSHOT"
 
 # Common provided
 netty = "4.0.20.Final"