diff --git a/Engine b/Engine
index 7f617d3..5c77c56 160000
--- a/Engine
+++ b/Engine
@@ -1 +1 @@
-Subproject commit 7f617d303c09d52d4242379ef87bc4b679d8fcea
+Subproject commit 5c77c566a5e5fd035d3421c1a3b58d7d3fc7bb9d
diff --git a/src/main/java/com/terraforged/biome/provider/BiomeProvider.java b/src/main/java/com/terraforged/biome/provider/BiomeProvider.java
index f77a8fc..059057b 100644
--- a/src/main/java/com/terraforged/biome/provider/BiomeProvider.java
+++ b/src/main/java/com/terraforged/biome/provider/BiomeProvider.java
@@ -33,6 +33,7 @@ import com.terraforged.chunk.TerraContext;
 import com.terraforged.chunk.util.FastChunk;
 import com.terraforged.chunk.util.TerraContainer;
 import com.terraforged.core.cell.Cell;
+import com.terraforged.core.concurrent.Resource;
 import com.terraforged.core.region.chunk.ChunkReader;
 import com.terraforged.util.setup.SetupHooks;
 import com.terraforged.world.heightmap.WorldLookup;
@@ -66,7 +67,7 @@ public class BiomeProvider extends AbstractBiomeProvider {
         this.modifierManager = SetupHooks.setup(new BiomeModifierManager(context, biomeMap), context.copy());
     }
 
-    public Cell lookupPos(int x, int z) {
+    public Resource<Cell> lookupPos(int x, int z) {
         return getWorldLookup().getCell(x, z);
     }
 
@@ -74,7 +75,9 @@ public class BiomeProvider extends AbstractBiomeProvider {
     public Biome getNoiseBiome(int x, int y, int z) {
         x = (x << 2);
         z = (z << 2);
-        return getBiome(lookupPos(x, z), x, z);
+        try (Resource<Cell> cell = lookupPos(x, z)) {
+            return getBiome(cell.get(), x, z);
+        }
     }
 
     @Override
diff --git a/src/main/java/com/terraforged/chunk/generator/TerrainGenerator.java b/src/main/java/com/terraforged/chunk/generator/TerrainGenerator.java
index 2afe367..db25857 100644
--- a/src/main/java/com/terraforged/chunk/generator/TerrainGenerator.java
+++ b/src/main/java/com/terraforged/chunk/generator/TerrainGenerator.java
@@ -75,7 +75,6 @@ public class TerrainGenerator {
         // bake biome array & discard gen data
         ((ChunkPrimer) chunk).func_225548_a_(container.bakeBiomes(Environment.isVanillaBiomes()));
 
-        // marks the heightmap data for this chunk for removal
         container.getChunkReader().dispose();
     }
 
diff --git a/src/main/java/com/terraforged/command/TerraCommand.java b/src/main/java/com/terraforged/command/TerraCommand.java
index 7ace97a..de8677e 100644
--- a/src/main/java/com/terraforged/command/TerraCommand.java
+++ b/src/main/java/com/terraforged/command/TerraCommand.java
@@ -42,6 +42,7 @@ import com.terraforged.command.search.BothSearchTask;
 import com.terraforged.command.search.Search;
 import com.terraforged.command.search.TerrainSearchTask;
 import com.terraforged.core.cell.Cell;
+import com.terraforged.core.concurrent.Resource;
 import com.terraforged.data.DataGen;
 import com.terraforged.settings.SettingsHelper;
 import com.terraforged.world.WorldGenerator;
@@ -126,12 +127,13 @@ public class TerraCommand {
 
         BlockPos pos = context.getSource().asPlayer().getPosition();
         BiomeProvider biomeProvider = getBiomeProvider(context);
-        Cell cell = biomeProvider.lookupPos(pos.getX(), pos.getZ());
-        Biome biome = biomeProvider.getBiome(cell, pos.getX(), pos.getZ());
-        context.getSource().sendFeedback(
-                new StringTextComponent("Terrain=" + cell.terrain.getName() + ", Biome=" + biome.getRegistryName()),
-                false
-        );
+        try (Resource<Cell> cell = biomeProvider.lookupPos(pos.getX(), pos.getZ())) {
+            Biome biome = biomeProvider.getBiome(cell.get(), pos.getX(), pos.getZ());
+            context.getSource().sendFeedback(
+                    new StringTextComponent("Terrain=" + cell.get().terrain.getName() + ", Biome=" + biome.getRegistryName()),
+                    false
+            );
+        }
 
         return Command.SINGLE_SUCCESS;
     }