diff --git a/build.gradle.kts b/build.gradle.kts
index ebe94560..751a2e0a 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -5,7 +5,7 @@ plugins {
 
 allprojects {
     group = "com.viaversion"
-    version = "4.6.0-23w07a-SNAPSHOT"
+    version = "4.6.0-23w08a-SNAPSHOT"
     description = "Allow older clients to join newer server versions."
 }
 
diff --git a/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_19_3to1_19_4/Protocol1_19_3To1_19_4.java b/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_19_3to1_19_4/Protocol1_19_3To1_19_4.java
index 19f2d690..8e2e45fc 100644
--- a/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_19_3to1_19_4/Protocol1_19_3To1_19_4.java
+++ b/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_19_3to1_19_4/Protocol1_19_3To1_19_4.java
@@ -75,14 +75,22 @@ public final class Protocol1_19_3To1_19_4 extends BackwardsProtocol<ClientboundP
         new CommandRewriter<ClientboundPackets1_19_4>(this) {
             @Override
             public void handleArgument(final PacketWrapper wrapper, final String argumentType) throws Exception {
-                if (argumentType.equals("minecraft:time")) {
-                    wrapper.read(Type.INT); // Minimum
-                } else if (argumentType.equals("minecraft:resource") || argumentType.equals("minecraft:resource_or_tag")) {
-                    final String resource = wrapper.read(Type.STRING);
-                    // Replace damage types with... something
-                    wrapper.write(Type.STRING, resource.equals("minecraft:damage_type") ? "minecraft:mob_effect" : resource);
-                } else {
-                    super.handleArgument(wrapper, argumentType);
+                switch (argumentType) {
+                    case "minecraft:heightmap":
+                        wrapper.write(Type.VAR_INT, 0);
+                        break;
+                    case "minecraft:time":
+                        wrapper.read(Type.INT); // Minimum
+                        break;
+                    case "minecraft:resource":
+                    case "minecraft:resource_or_tag":
+                        final String resource = wrapper.read(Type.STRING);
+                        // Replace damage types with... something
+                        wrapper.write(Type.STRING, resource.equals("minecraft:damage_type") ? "minecraft:mob_effect" : resource);
+                        break;
+                    default:
+                        super.handleArgument(wrapper, argumentType);
+                        break;
                 }
             }
         }.registerDeclareCommands1_19(ClientboundPackets1_19_4.DECLARE_COMMANDS);
@@ -101,6 +109,7 @@ public final class Protocol1_19_3To1_19_4 extends BackwardsProtocol<ClientboundP
         });
 
         cancelClientbound(ClientboundPackets1_19_4.BUNDLE);
+        cancelClientbound(ClientboundPackets1_19_4.CHUNK_BIOMES); // We definitely do not want to cache every single chunk just to resent them with new biomes
     }
 
     @Override
diff --git a/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_19_3to1_19_4/packets/EntityPackets1_19_4.java b/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_19_3to1_19_4/packets/EntityPackets1_19_4.java
index d1d7f0c2..3cc442a4 100644
--- a/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_19_3to1_19_4/packets/EntityPackets1_19_4.java
+++ b/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_19_3to1_19_4/packets/EntityPackets1_19_4.java
@@ -78,6 +78,20 @@ public final class EntityPackets1_19_4 extends EntityRewriter<ClientboundPackets
             }
         });
 
+        protocol.registerClientbound(ClientboundPackets1_19_4.PLAYER_POSITION, new PacketHandlers() {
+            @Override
+            protected void register() {
+                map(Type.DOUBLE); // X
+                map(Type.DOUBLE); // Y
+                map(Type.DOUBLE); // Z
+                map(Type.FLOAT); // Yaw
+                map(Type.FLOAT); // Pitch
+                map(Type.UNSIGNED_BYTE); // Relative arguments
+                map(Type.VAR_INT); // Id
+                create(Type.BOOLEAN, false); // Dismount vehicle
+            }
+        });
+
         protocol.registerClientbound(ClientboundPackets1_19_4.DAMAGE_EVENT, ClientboundPackets1_19_3.ENTITY_STATUS, new PacketHandlers() {
             @Override
             public void register() {
diff --git a/common/src/main/resources/assets/viabackwards/data/mapping-1.19.3to1.19.4.json b/common/src/main/resources/assets/viabackwards/data/mapping-1.19.3to1.19.4.json
index 399bc99a..53c4ec58 100644
--- a/common/src/main/resources/assets/viabackwards/data/mapping-1.19.3to1.19.4.json
+++ b/common/src/main/resources/assets/viabackwards/data/mapping-1.19.3to1.19.4.json
@@ -272,5 +272,8 @@
   },
   "entitynames": {
     "sniffer": "Sniffer"
+  },
+  "argumenttypes": {
+    "minecraft:heightmap": "brigadier:string"
   }
 }
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index ed7b3cb7..9b6598ff 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -3,7 +3,7 @@ metadata.format.version = "1.1"
 [versions]
 
 # ViaVersion
-viaver = "4.6.0-23w07a-SNAPSHOT"
+viaver = "4.6.0-23w08a-SNAPSHOT"
 
 # Common provided
 netty = "4.0.20.Final"