diff --git a/common/src/main/java/com/viaversion/viabackwards/api/rewriters/ItemRewriter.java b/common/src/main/java/com/viaversion/viabackwards/api/rewriters/ItemRewriter.java
index 2ddb4bc7..4c6500a5 100644
--- a/common/src/main/java/com/viaversion/viabackwards/api/rewriters/ItemRewriter.java
+++ b/common/src/main/java/com/viaversion/viabackwards/api/rewriters/ItemRewriter.java
@@ -86,7 +86,7 @@ public class ItemRewriter<C extends ClientboundPacketType, S extends Serverbound
             }
         }
 
-        MappedItem data = protocol.getMappingData().getMappedItem(item.identifier());
+        MappedItem data = protocol.getMappingData() != null ? protocol.getMappingData().getMappedItem(item.identifier()) : null;
         if (data == null) {
             // Just rewrite the id
             return super.handleItemToClient(item);
diff --git a/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_20_4to1_20_2/Protocol1_20To1_20_2.java b/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_20_4to1_20_2/Protocol1_20To1_20_2.java
index ca5281bb..3784ecd8 100644
--- a/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_20_4to1_20_2/Protocol1_20To1_20_2.java
+++ b/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_20_4to1_20_2/Protocol1_20To1_20_2.java
@@ -55,7 +55,7 @@ public final class Protocol1_20To1_20_2 extends BackwardsProtocol<ClientboundPac
     @Override
     protected void registerPackets() {
         super.registerPackets();
-        Via.getManager().debugHandler().setEnabled(true);
+        ;
 
         registerClientbound(ClientboundPackets1_20_2.SCOREBOARD_OBJECTIVE, wrapper -> {
             final int slot = wrapper.read(Type.VAR_INT);
@@ -68,13 +68,13 @@ public final class Protocol1_20To1_20_2 extends BackwardsProtocol<ClientboundPac
 
             // We can't set the internal state to configuration here as protocols down the line will expect the state to be play
             wrapper.user().put(new ConfigurationPacketStorage());
-            System.out.println(wrapper.user().getProtocolInfo().getState());
         });
 
         registerClientbound(State.CONFIGURATION, ClientboundConfigurationPackets1_20_2.FINISH_CONFIGURATION.getId(), ClientboundConfigurationPackets1_20_2.FINISH_CONFIGURATION.getId(), wrapper -> {
             wrapper.cancel();
             wrapper.create(ServerboundConfigurationPackets1_20_2.FINISH_CONFIGURATION).sendToServer(Protocol1_20To1_20_2.class);
             wrapper.user().getProtocolInfo().setState(State.PLAY);
+            wrapper.user().get(ConfigurationPacketStorage.class).setFinished(true);
         });
 
         registerServerbound(State.LOGIN, ServerboundLoginPackets.HELLO.getId(), ServerboundLoginPackets.HELLO.getId(), wrapper -> {
@@ -85,7 +85,7 @@ public final class Protocol1_20To1_20_2 extends BackwardsProtocol<ClientboundPac
             wrapper.write(Type.UUID, uuid != null ? uuid : new UUID(0, 0));
         });
 
-        cancelClientbound(ClientboundPackets1_20_2.START_CONFIGURATION); // TODO
+        cancelClientbound(ClientboundPackets1_20_2.START_CONFIGURATION); // TODO Implement switch back
 
         // Some can be directly remapped to play packets, others need to be queued
         registerClientbound(State.CONFIGURATION, ClientboundConfigurationPackets1_20_2.DISCONNECT.getId(), ClientboundPackets1_19_4.DISCONNECT.getId());
@@ -118,7 +118,7 @@ public final class Protocol1_20To1_20_2 extends BackwardsProtocol<ClientboundPac
     @Override
     public void transform(final Direction direction, final State state, final PacketWrapper wrapper) throws Exception {
         final ConfigurationPacketStorage configurationPacketStorage = wrapper.user().get(ConfigurationPacketStorage.class);
-        if (configurationPacketStorage == null) {
+        if (configurationPacketStorage == null || configurationPacketStorage.isFinished()) {
             super.transform(direction, state, wrapper);
             return;
         }
@@ -138,9 +138,7 @@ public final class Protocol1_20To1_20_2 extends BackwardsProtocol<ClientboundPac
         } else if (id == ServerboundPackets1_19_4.RESOURCE_PACK_STATUS.getId()) {
             wrapper.setPacketType(ServerboundConfigurationPackets1_20_2.RESOURCE_PACK);
         } else {
-            // Can't do
-            // TODO Queue
-            System.out.println("Cancelling: " + state + " - " + wrapper.getPacketType() + " " + wrapper.getId());
+            // Can't do (maybe should do?)
             throw CancelException.generate();
         }
     }
diff --git a/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_20_4to1_20_2/rewriter/BlockItemPacketRewriter1_20_2.java b/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_20_4to1_20_2/rewriter/BlockItemPacketRewriter1_20_2.java
index d092a966..ee40e8dd 100644
--- a/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_20_4to1_20_2/rewriter/BlockItemPacketRewriter1_20_2.java
+++ b/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_20_4to1_20_2/rewriter/BlockItemPacketRewriter1_20_2.java
@@ -31,6 +31,8 @@ import com.viaversion.viaversion.protocols.protocol1_18to1_17_1.types.Chunk1_18T
 import com.viaversion.viaversion.protocols.protocol1_19_4to1_19_3.ServerboundPackets1_19_4;
 import com.viaversion.viaversion.protocols.protocol1_19_4to1_19_3.rewriter.RecipeRewriter1_19_4;
 import com.viaversion.viaversion.protocols.protocol1_20_2to1_20.packet.ClientboundPackets1_20_2;
+import com.viaversion.viaversion.protocols.protocol1_20_2to1_20.packet.ServerboundPackets1_20_2;
+import com.viaversion.viaversion.protocols.protocol1_20_2to1_20.rewriter.RecipeRewriter1_20_2;
 import com.viaversion.viaversion.protocols.protocol1_20_2to1_20.type.ChunkType1_20_2;
 import com.viaversion.viaversion.protocols.protocol1_20to1_19_4.Protocol1_20To1_19_4;
 import com.viaversion.viaversion.util.MathUtil;
@@ -44,7 +46,13 @@ public final class BlockItemPacketRewriter1_20_2 extends ItemRewriter<Clientboun
     @Override
     public void registerPackets() {
         protocol.cancelClientbound(ClientboundPackets1_20_2.CHUNK_BATCH_START);
-        protocol.cancelClientbound(ClientboundPackets1_20_2.CHUNK_BATCH_FINISHED);
+        protocol.registerClientbound(ClientboundPackets1_20_2.CHUNK_BATCH_FINISHED, null, wrapper -> {
+            wrapper.cancel();
+
+            final PacketWrapper receivedPacket = wrapper.create(ServerboundPackets1_20_2.CHUNK_BATCH_RECEIVED);
+            receivedPacket.write(Type.FLOAT, 500F); // Requested next batch size... arbitrary value here
+            receivedPacket.sendToServer(Protocol1_20To1_20_2.class);
+        });
 
         protocol.registerClientbound(ClientboundPackets1_20_2.UNLOAD_CHUNK, wrapper -> {
             final ChunkPosition chunkPosition = wrapper.read(Type.CHUNK_POSITION);
@@ -214,7 +222,7 @@ public final class BlockItemPacketRewriter1_20_2 extends ItemRewriter<Clientboun
             }
         });
 
-        new RecipeRewriter1_19_4<ClientboundPackets1_20_2>(protocol) {
+        new RecipeRewriter1_20_2<ClientboundPackets1_20_2>(protocol) {
             @Override
             public void handleCraftingShapeless(final PacketWrapper wrapper) throws Exception {
                 wrapper.passthrough(Type.STRING); // Group
diff --git a/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_20_4to1_20_2/rewriter/EntityPacketRewriter1_20_2.java b/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_20_4to1_20_2/rewriter/EntityPacketRewriter1_20_2.java
index 2b33fe40..e60a05bb 100644
--- a/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_20_4to1_20_2/rewriter/EntityPacketRewriter1_20_2.java
+++ b/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_20_4to1_20_2/rewriter/EntityPacketRewriter1_20_2.java
@@ -47,7 +47,7 @@ public final class EntityPacketRewriter1_20_2 extends EntityRewriter<Clientbound
             @Override
             public void register() {
                 handler(wrapper -> {
-                    final ConfigurationPacketStorage configurationPacketStorage = wrapper.user().get(ConfigurationPacketStorage.class);
+                    final ConfigurationPacketStorage configurationPacketStorage = wrapper.user().remove(ConfigurationPacketStorage.class);
                     wrapper.passthrough(Type.INT); // Entity id
                     wrapper.passthrough(Type.BOOLEAN); // Hardcore
 
@@ -75,8 +75,8 @@ public final class EntityPacketRewriter1_20_2 extends EntityRewriter<Clientbound
                     wrapper.write(Type.BOOLEAN, reducedDebugInfo);
                     wrapper.write(Type.BOOLEAN, showRespawnScreen);
 
-                    wrapper.cancel();
                     wrapper.send(Protocol1_20To1_20_2.class);
+                    wrapper.cancel();
 
                     final PacketWrapper featuresPacket = wrapper.create(ClientboundPackets1_19_4.UPDATE_ENABLED_FEATURES);
                     featuresPacket.write(Type.STRING_ARRAY, configurationPacketStorage.enabledFeatures());
diff --git a/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_20_4to1_20_2/storage/ConfigurationPacketStorage.java b/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_20_4to1_20_2/storage/ConfigurationPacketStorage.java
index 06ea1223..40cb1e2e 100644
--- a/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_20_4to1_20_2/storage/ConfigurationPacketStorage.java
+++ b/common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_20_4to1_20_2/storage/ConfigurationPacketStorage.java
@@ -17,6 +17,7 @@
  */
 package com.viaversion.viabackwards.protocol.protocol1_20_4to1_20_2.storage;
 
+import com.google.common.base.Preconditions;
 import com.viaversion.viabackwards.protocol.protocol1_20_4to1_20_2.Protocol1_20To1_20_2;
 import com.viaversion.viaversion.api.connection.StorableObject;
 import com.viaversion.viaversion.api.connection.UserConnection;
@@ -33,8 +34,10 @@ public final class ConfigurationPacketStorage implements StorableObject {
     private final List<QueuedPacket> rawPackets = new ArrayList<>();
     private CompoundTag registry;
     private String[] enabledFeatures;
+    private boolean finished;
 
     public CompoundTag registry() {
+        Preconditions.checkNotNull(registry);
         return registry;
     }
 
@@ -43,6 +46,7 @@ public final class ConfigurationPacketStorage implements StorableObject {
     }
 
     public String[] enabledFeatures() {
+        Preconditions.checkNotNull(enabledFeatures);
         return enabledFeatures;
     }
 
@@ -50,14 +54,9 @@ public final class ConfigurationPacketStorage implements StorableObject {
         this.enabledFeatures = enabledFeatures;
     }
 
-    public List<QueuedPacket> getRawPackets() {
-        return rawPackets;
-    }
-
     public void addRawPacket(final PacketWrapper wrapper, final PacketType type) throws Exception {
         // It's easier to just copy it to a byte array buffer than to manually read the data
         final ByteBuf buf = Unpooled.buffer();
-        final int id = wrapper.getId();
         //noinspection deprecation
         wrapper.setId(-1); // Don't write the packet id to the buffer
         wrapper.writeToBuffer(buf);
@@ -75,6 +74,14 @@ public final class ConfigurationPacketStorage implements StorableObject {
         }
     }
 
+    public boolean isFinished() {
+        return finished;
+    }
+
+    public void setFinished(final boolean finished) {
+        this.finished = finished;
+    }
+
     public static final class QueuedPacket {
         private final ByteBuf buf;
         private final PacketType packetType;