diff --git a/src/main/java/net/minestom/server/instance/DynamicChunk.java b/src/main/java/net/minestom/server/instance/DynamicChunk.java
index 97e933554..d339916cb 100644
--- a/src/main/java/net/minestom/server/instance/DynamicChunk.java
+++ b/src/main/java/net/minestom/server/instance/DynamicChunk.java
@@ -64,7 +64,7 @@ public class DynamicChunk extends Chunk {
             columnarOcclusionFieldList.onBlockChanged(x, y, z, blockDescription, 0);
         }
         Section section = getSectionAt(y);
-        section.blockPalette().set(toChunkRelativeCoordinate(x), y, toChunkRelativeCoordinate(z), block.stateId());
+        section.blockPalette().set(toChunkRelativeCoordinate(x), y / 16, toChunkRelativeCoordinate(z), block.stateId());
 
         final int index = ChunkUtils.getBlockIndex(x, y, z);
         // Handler
@@ -86,7 +86,7 @@ public class DynamicChunk extends Chunk {
     public void setBiome(int x, int y, int z, @NotNull Biome biome) {
         this.chunkCache.invalidate();
         Section section = getSectionAt(y);
-        section.biomePalette().set(toChunkRelativeCoordinate(x) / 4, y / 4, toChunkRelativeCoordinate(x) / 4, biome.id());
+        section.biomePalette().set(toChunkRelativeCoordinate(x) / 4, y / 4 / 16, toChunkRelativeCoordinate(z) / 4, biome.id());
     }
 
     @Override
@@ -123,7 +123,7 @@ public class DynamicChunk extends Chunk {
         // Retrieve the block from state id
         final Section section = sections[ChunkUtils.getSectionAt(y) + minSection];
         if (section == null) return Block.AIR; // Section is unloaded
-        final int blockStateId = section.blockPalette().get(toChunkRelativeCoordinate(x), y, toChunkRelativeCoordinate(z));
+        final int blockStateId = section.blockPalette().get(toChunkRelativeCoordinate(x), y / 16, toChunkRelativeCoordinate(z));
         if (blockStateId == -1) return Block.AIR; // Section is empty
         return Objects.requireNonNullElse(Block.fromStateId((short) blockStateId), Block.AIR);
     }
@@ -132,7 +132,7 @@ public class DynamicChunk extends Chunk {
     public @NotNull Biome getBiome(int x, int y, int z) {
         final Section section = sections[ChunkUtils.getSectionAt(y) + minSection];
         if (section == null) return Biome.PLAINS; // Section is unloaded
-        final int id = section.biomePalette().get(toChunkRelativeCoordinate(x), y, toChunkRelativeCoordinate(z));
+        final int id = section.biomePalette().get(toChunkRelativeCoordinate(x) / 4, y / 4 / 16, toChunkRelativeCoordinate(z) / 4);
         return MinecraftServer.getBiomeManager().getById(id);
     }
 
@@ -154,9 +154,8 @@ public class DynamicChunk extends Chunk {
         sendPacketToViewers(chunkCache.retrieve());
     }
 
-    @NotNull
     @Override
-    public Chunk copy(@NotNull Instance instance, int chunkX, int chunkZ) {
+    public @NotNull Chunk copy(@NotNull Instance instance, int chunkX, int chunkZ) {
         DynamicChunk dynamicChunk = new DynamicChunk(instance, chunkX, chunkZ);
         Arrays.setAll(dynamicChunk.sections, value -> {
             final Section s = sections[value];