diff --git a/src/main/java/com/falsepattern/chunk/internal/mixin/mixins/common/base/S26PacketMapChunkBulkMixin.java b/src/main/java/com/falsepattern/chunk/internal/mixin/mixins/common/base/S26PacketMapChunkBulkMixin.java
deleted file mode 100644
index c31fe32..0000000
--- a/src/main/java/com/falsepattern/chunk/internal/mixin/mixins/common/base/S26PacketMapChunkBulkMixin.java
+++ /dev/null
@@ -1,123 +0,0 @@
-/*
- * ChunkAPI
- *
- * Copyright (C) 2023-2025 FalsePattern, The MEGA Team, LegacyModdingMC contributors
- * All Rights Reserved
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as published by
- * the Free Software Foundation, only version 3 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-package com.falsepattern.chunk.internal.mixin.mixins.common.base;
-
-import com.falsepattern.chunk.internal.mixin.helpers.LockHelper;
-import lombok.val;
-import org.spongepowered.asm.mixin.Mixin;
-import org.spongepowered.asm.mixin.Overwrite;
-import org.spongepowered.asm.mixin.Shadow;
-
-import net.minecraft.network.PacketBuffer;
-import net.minecraft.network.play.server.S21PacketChunkData;
-import net.minecraft.network.play.server.S26PacketMapChunkBulk;
-
-import java.io.IOException;
-import java.util.zip.DataFormatException;
-import java.util.zip.Inflater;
-
-@Mixin(S26PacketMapChunkBulk.class)
-public abstract class S26PacketMapChunkBulkMixin {
-    @Shadow(aliases = "field_149268_i",
-            remap = false)
-    private static byte[] inflaterBuffer;
-    @Shadow(aliases = "field_149266_a",
-            remap = false)
-    private int[] xPositions;
-    @Shadow(aliases = "field_149264_b",
-            remap = false)
-    private int[] zPositions;
-    @Shadow(aliases = "field_149265_c",
-            remap = false)
-    private int[] subChunkMasks;
-    @Shadow(aliases = "field_149262_d",
-            remap = false)
-    private int[] subChunkMSBMasks;
-    @Shadow(aliases = "field_149261_g",
-            remap = false)
-    private int deflatedSize;
-    @Shadow(aliases = "field_149267_h",
-            remap = false)
-    private boolean skylight;
-    @Shadow(aliases = "field_149260_f",
-            remap = false)
-    private byte[][] datas;
-
-    /**
-     * @author FalsePattern
-     * @reason Replace functionality
-     */
-    @Overwrite
-    public void readPacketData(PacketBuffer data) throws IOException {
-        short chunkCount = data.readShort();
-        val sizes = new int[chunkCount];
-        for (int i = 0; i < chunkCount; i++) {
-            sizes[i] = data.readInt();
-        }
-        deflatedSize = data.readInt();
-        skylight = data.readBoolean();
-        xPositions = new int[chunkCount];
-        zPositions = new int[chunkCount];
-        subChunkMasks = new int[chunkCount];
-        subChunkMSBMasks = new int[chunkCount];
-        datas = new byte[chunkCount][];
-
-        while (!LockHelper.bufferLockS26PacketMapChunkBulk.tryLock()) {
-            Thread.yield();
-        }
-        byte[] buf;
-        try {
-            if (inflaterBuffer.length < deflatedSize) {
-                inflaterBuffer = new byte[deflatedSize];
-            }
-
-            data.readBytes(inflaterBuffer, 0, deflatedSize);
-            buf = new byte[S21PacketChunkData.func_149275_c() * chunkCount];
-            Inflater inflater = new Inflater();
-            inflater.setInput(inflaterBuffer, 0, deflatedSize);
-
-            try {
-                inflater.inflate(buf);
-            } catch (DataFormatException dataformatexception) {
-                throw new IOException("Bad compressed data format");
-            } finally {
-                inflater.end();
-            }
-        } finally {
-            LockHelper.bufferLockS26PacketMapChunkBulk.unlock();
-        }
-
-        int pos = 0;
-
-        for (int i = 0; i < chunkCount; ++i) {
-            val size = sizes[i];
-            xPositions[i] = data.readInt();
-            zPositions[i] = data.readInt();
-            subChunkMasks[i] = data.readUnsignedShort();
-
-            datas[i] = new byte[size];
-            System.arraycopy(buf, pos, datas[i], 0, size);
-            pos += size;
-        }
-    }
-}
diff --git a/src/main/java/com/falsepattern/chunk/internal/mixin/mixins/common/thermos/S26PacketMapChunkBulkMixin.java b/src/main/java/com/falsepattern/chunk/internal/mixin/mixins/common/thermos/S26PacketMapChunkBulkMixin.java
index 00a929f..10f77eb 100644
--- a/src/main/java/com/falsepattern/chunk/internal/mixin/mixins/common/thermos/S26PacketMapChunkBulkMixin.java
+++ b/src/main/java/com/falsepattern/chunk/internal/mixin/mixins/common/thermos/S26PacketMapChunkBulkMixin.java
@@ -23,16 +23,26 @@
 
 package com.falsepattern.chunk.internal.mixin.mixins.common.thermos;
 
+import com.falsepattern.chunk.internal.mixin.helpers.LockHelper;
+import lombok.val;
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.Overwrite;
 import org.spongepowered.asm.mixin.Shadow;
 
 import net.minecraft.network.PacketBuffer;
+import net.minecraft.network.play.server.S21PacketChunkData;
 import net.minecraft.network.play.server.S26PacketMapChunkBulk;
 
+import java.io.IOException;
+import java.util.zip.DataFormatException;
+import java.util.zip.Inflater;
+
 
 @Mixin(S26PacketMapChunkBulk.class)
 public abstract class S26PacketMapChunkBulkMixin {
+    @Shadow(aliases = "field_149268_i",
+            remap = false)
+    private byte[] inflaterBuffer;
     @Shadow(aliases = "field_149263_e",
             remap = false)
     private byte[] deflatedData;
@@ -45,6 +55,9 @@ public abstract class S26PacketMapChunkBulkMixin {
     @Shadow(aliases = "field_149265_c",
             remap = false)
     private int[] subChunkMasks;
+    @Shadow(aliases = "field_149262_d",
+            remap = false)
+    private int[] subChunkMSBMasks;
     @Shadow(aliases = "field_149261_g",
             remap = false)
     private int deflatedSize;
@@ -57,6 +70,64 @@ public abstract class S26PacketMapChunkBulkMixin {
 
     @Shadow(remap = false)
     protected abstract void compress();
+
+    /**
+     * @author FalsePattern
+     * @reason Replace functionality
+     */
+    @Overwrite
+    public void readPacketData(PacketBuffer data) throws IOException {
+        short chunkCount = data.readShort();
+        val sizes = new int[chunkCount];
+        for (int i = 0; i < chunkCount; i++) {
+            sizes[i] = data.readInt();
+        }
+        deflatedSize = data.readInt();
+        skylight = data.readBoolean();
+        xPositions = new int[chunkCount];
+        zPositions = new int[chunkCount];
+        subChunkMasks = new int[chunkCount];
+        subChunkMSBMasks = new int[chunkCount];
+        datas = new byte[chunkCount][];
+
+        while (!LockHelper.bufferLockS26PacketMapChunkBulk.tryLock()) {
+            Thread.yield();
+        }
+        byte[] buf;
+        try {
+            if (inflaterBuffer.length < deflatedSize) {
+                inflaterBuffer = new byte[deflatedSize];
+            }
+
+            data.readBytes(inflaterBuffer, 0, deflatedSize);
+            buf = new byte[S21PacketChunkData.func_149275_c() * chunkCount];
+            Inflater inflater = new Inflater();
+            inflater.setInput(inflaterBuffer, 0, deflatedSize);
+
+            try {
+                inflater.inflate(buf);
+            } catch (DataFormatException dataformatexception) {
+                throw new IOException("Bad compressed data format");
+            } finally {
+                inflater.end();
+            }
+        } finally {
+            LockHelper.bufferLockS26PacketMapChunkBulk.unlock();
+        }
+
+        int pos = 0;
+
+        for (int i = 0; i < chunkCount; ++i) {
+            val size = sizes[i];
+            xPositions[i] = data.readInt();
+            zPositions[i] = data.readInt();
+            subChunkMasks[i] = data.readUnsignedShort();
+
+            datas[i] = new byte[size];
+            System.arraycopy(buf, pos, datas[i], 0, size);
+            pos += size;
+        }
+    }
     
     /**
      * @author FalsePattern
diff --git a/src/main/java/com/falsepattern/chunk/internal/mixin/mixins/common/vanilla/S26PacketMapChunkBulkMixin.java b/src/main/java/com/falsepattern/chunk/internal/mixin/mixins/common/vanilla/S26PacketMapChunkBulkMixin.java
index b9feafc..0ef0e3e 100644
--- a/src/main/java/com/falsepattern/chunk/internal/mixin/mixins/common/vanilla/S26PacketMapChunkBulkMixin.java
+++ b/src/main/java/com/falsepattern/chunk/internal/mixin/mixins/common/vanilla/S26PacketMapChunkBulkMixin.java
@@ -22,17 +22,26 @@
 
 package com.falsepattern.chunk.internal.mixin.mixins.common.vanilla;
 
+import com.falsepattern.chunk.internal.mixin.helpers.LockHelper;
+import lombok.val;
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.Overwrite;
 import org.spongepowered.asm.mixin.Shadow;
 
 import net.minecraft.network.PacketBuffer;
+import net.minecraft.network.play.server.S21PacketChunkData;
 import net.minecraft.network.play.server.S26PacketMapChunkBulk;
 
+import java.io.IOException;
 import java.util.concurrent.Semaphore;
+import java.util.zip.DataFormatException;
+import java.util.zip.Inflater;
 
 @Mixin(S26PacketMapChunkBulk.class)
 public abstract class S26PacketMapChunkBulkMixin {
+    @Shadow(aliases = "field_149268_i",
+            remap = false)
+    private static byte[] inflaterBuffer;
     @Shadow(aliases = "field_149263_e",
             remap = false)
     private byte[] deflatedData;
@@ -47,6 +56,9 @@ public abstract class S26PacketMapChunkBulkMixin {
     @Shadow(aliases = "field_149265_c",
             remap = false)
     private int[] subChunkMasks;
+    @Shadow(aliases = "field_149262_d",
+            remap = false)
+    private int[] subChunkMSBMasks;
     @Shadow(aliases = "field_149261_g",
             remap = false)
     private int deflatedSize;
@@ -60,6 +72,64 @@ public abstract class S26PacketMapChunkBulkMixin {
     @Shadow(remap = false)
     protected abstract void deflate();
 
+    /**
+     * @author FalsePattern
+     * @reason Replace functionality
+     */
+    @Overwrite
+    public void readPacketData(PacketBuffer data) throws IOException {
+        short chunkCount = data.readShort();
+        val sizes = new int[chunkCount];
+        for (int i = 0; i < chunkCount; i++) {
+            sizes[i] = data.readInt();
+        }
+        deflatedSize = data.readInt();
+        skylight = data.readBoolean();
+        xPositions = new int[chunkCount];
+        zPositions = new int[chunkCount];
+        subChunkMasks = new int[chunkCount];
+        subChunkMSBMasks = new int[chunkCount];
+        datas = new byte[chunkCount][];
+
+        while (!LockHelper.bufferLockS26PacketMapChunkBulk.tryLock()) {
+            Thread.yield();
+        }
+        byte[] buf;
+        try {
+            if (inflaterBuffer.length < deflatedSize) {
+                inflaterBuffer = new byte[deflatedSize];
+            }
+
+            data.readBytes(inflaterBuffer, 0, deflatedSize);
+            buf = new byte[S21PacketChunkData.func_149275_c() * chunkCount];
+            Inflater inflater = new Inflater();
+            inflater.setInput(inflaterBuffer, 0, deflatedSize);
+
+            try {
+                inflater.inflate(buf);
+            } catch (DataFormatException dataformatexception) {
+                throw new IOException("Bad compressed data format");
+            } finally {
+                inflater.end();
+            }
+        } finally {
+            LockHelper.bufferLockS26PacketMapChunkBulk.unlock();
+        }
+
+        int pos = 0;
+
+        for (int i = 0; i < chunkCount; ++i) {
+            val size = sizes[i];
+            xPositions[i] = data.readInt();
+            zPositions[i] = data.readInt();
+            subChunkMasks[i] = data.readUnsignedShort();
+
+            datas[i] = new byte[size];
+            System.arraycopy(buf, pos, datas[i], 0, size);
+            pos += size;
+        }
+    }
+    
     /**
      * @author FalsePattern
      * @reason Replace functionality