diff --git a/src/main/java/net/minestom/server/instance/AnvilLoader.java b/src/main/java/net/minestom/server/instance/AnvilLoader.java
index 8af8e69e0..5ff1d1f0f 100644
--- a/src/main/java/net/minestom/server/instance/AnvilLoader.java
+++ b/src/main/java/net/minestom/server/instance/AnvilLoader.java
@@ -73,7 +73,7 @@ public class AnvilLoader implements IChunkLoader {
         }
         try {
             return loadMCA(instance, chunkX, chunkZ);
-        } catch (IOException | AnvilException e) {
+        } catch (Exception e) {
             EXCEPTION_MANAGER.handleException(e);
         }
         return CompletableFuture.completedFuture(null);
diff --git a/src/main/java/net/minestom/server/instance/palette/PaletteImpl.java b/src/main/java/net/minestom/server/instance/palette/PaletteImpl.java
index 60477e6e1..3c968ef0e 100644
--- a/src/main/java/net/minestom/server/instance/palette/PaletteImpl.java
+++ b/src/main/java/net/minestom/server/instance/palette/PaletteImpl.java
@@ -9,7 +9,7 @@ import org.jetbrains.annotations.NotNull;
 
 import static net.minestom.server.instance.Chunk.CHUNK_SECTION_SIZE;
 
-final class PaletteImpl implements Palette {
+final class PaletteImpl implements Palette, Cloneable {
     // Magic values generated with "Integer.MAX_VALUE >> (31 - bitsPerIndex)" for bitsPerIndex between 1 and 16
     private static final int[] MAGIC_MASKS =
             {0, 1, 3, 7,
@@ -152,16 +152,10 @@ final class PaletteImpl implements Palette {
         // Palette
         if (bitsPerEntry < 9) {
             // Palette has to exist
-            writer.writeVarInt(lastPaletteIndex);
-            for (int i = 0; i < lastPaletteIndex; i++) {
-                writer.writeVarInt(paletteToValueList.getInt(i));
-            }
+            writer.writeVarIntList(paletteToValueList, BinaryWriter::writeVarInt);
         }
         // Raw
-        writer.writeVarInt(values.length);
-        for (long datum : values) {
-            writer.writeLong(datum);
-        }
+        writer.writeLongArray(values);
     }
 
     private int fixBitsPerEntry(int bitsPerEntry) {
diff --git a/src/main/java/net/minestom/server/network/packet/server/play/data/ChunkData.java b/src/main/java/net/minestom/server/network/packet/server/play/data/ChunkData.java
index 12cd95e78..1f08dad6a 100644
--- a/src/main/java/net/minestom/server/network/packet/server/play/data/ChunkData.java
+++ b/src/main/java/net/minestom/server/network/packet/server/play/data/ChunkData.java
@@ -19,7 +19,6 @@ import java.util.Objects;
 public record ChunkData(@NotNull NBTCompound heightmaps, byte @NotNull [] data,
                         @NotNull Map<Integer, Block> blockEntities) implements Writeable {
     public ChunkData {
-        data = data.clone();
         blockEntities = Map.copyOf(blockEntities);
     }