diff --git a/BlueMapCore/src/main/java/de/bluecolored/bluemap/core/mca/ChunkAnvil113.java b/BlueMapCore/src/main/java/de/bluecolored/bluemap/core/mca/ChunkAnvil113.java
index ef6c2a02..60cd87b2 100644
--- a/BlueMapCore/src/main/java/de/bluecolored/bluemap/core/mca/ChunkAnvil113.java
+++ b/BlueMapCore/src/main/java/de/bluecolored/bluemap/core/mca/ChunkAnvil113.java
@@ -152,9 +152,9 @@ public Section(CompoundTag sectionData) {
 			this.skyLight = sectionData.getByteArray("SkyLight");
 			this.blocks = sectionData.getLongArray("BlockStates");
 
-			if (blocks.length < 256) blocks = Arrays.copyOf(blocks, 256);
-			if (blockLight.length < 2048) blockLight = Arrays.copyOf(blockLight, 2048);
-			if (skyLight.length < 2048) skyLight = Arrays.copyOf(skyLight, 2048);
+			if (blocks.length < 256 && blocks.length > 0) blocks = Arrays.copyOf(blocks, 256);
+			if (blockLight.length < 2048 && blockLight.length > 0) blockLight = Arrays.copyOf(blockLight, 2048);
+			if (skyLight.length < 2048 && skyLight.length > 0) skyLight = Arrays.copyOf(skyLight, 2048);
 			
 			//read block palette
 			ListTag<CompoundTag> paletteTag = (ListTag<CompoundTag>) sectionData.getListTag("Palette");
@@ -221,6 +221,8 @@ public BlockState getBlockState(Vector3i pos) {
 		}
 		
 		public LightData getLightData(Vector3i pos) {
+			if (blockLight.length == 0 && skyLight.length == 0) return LightData.ZERO;
+			
 			int x = pos.getX() & 0xF; // Math.floorMod(pos.getX(), 16)
 			int y = pos.getY() & 0xF;
 			int z = pos.getZ() & 0xF;
@@ -228,8 +230,8 @@ public LightData getLightData(Vector3i pos) {
 			int blockHalfByteIndex = blockByteIndex >> 1; // blockByteIndex / 2 
 			boolean largeHalf = (blockByteIndex & 0x1) != 0; // (blockByteIndex % 2) == 0
 
-			int blockLight = getByteHalf(this.blockLight[blockHalfByteIndex], largeHalf);
-			int skyLight = getByteHalf(this.skyLight[blockHalfByteIndex], largeHalf);
+			int blockLight = this.blockLight.length > 0 ? getByteHalf(this.blockLight[blockHalfByteIndex], largeHalf) : 0;
+			int skyLight = this.skyLight.length > 0 ? getByteHalf(this.skyLight[blockHalfByteIndex], largeHalf) : 0;
 			
 			return new LightData(skyLight, blockLight);
 		}
diff --git a/BlueMapCore/src/main/java/de/bluecolored/bluemap/core/mca/ChunkAnvil115.java b/BlueMapCore/src/main/java/de/bluecolored/bluemap/core/mca/ChunkAnvil115.java
index 2ebfa8a0..4b36ad1e 100644
--- a/BlueMapCore/src/main/java/de/bluecolored/bluemap/core/mca/ChunkAnvil115.java
+++ b/BlueMapCore/src/main/java/de/bluecolored/bluemap/core/mca/ChunkAnvil115.java
@@ -153,9 +153,9 @@ public Section(CompoundTag sectionData) {
 			this.skyLight = sectionData.getByteArray("SkyLight");
 			this.blocks = sectionData.getLongArray("BlockStates");
 
-			if (blocks.length < 256) blocks = Arrays.copyOf(blocks, 256);
-			if (blockLight.length < 2048) blockLight = Arrays.copyOf(blockLight, 2048);
-			if (skyLight.length < 2048) skyLight = Arrays.copyOf(skyLight, 2048);
+			if (blocks.length < 256 && blocks.length > 0) blocks = Arrays.copyOf(blocks, 256);
+			if (blockLight.length < 2048 && blockLight.length > 0) blockLight = Arrays.copyOf(blockLight, 2048);
+			if (skyLight.length < 2048 && skyLight.length > 0) skyLight = Arrays.copyOf(skyLight, 2048);
 			
 			//read block palette
 			ListTag<CompoundTag> paletteTag = (ListTag<CompoundTag>) sectionData.getListTag("Palette");
@@ -222,6 +222,8 @@ public BlockState getBlockState(Vector3i pos) {
 		}
 		
 		public LightData getLightData(Vector3i pos) {
+			if (blockLight.length == 0 && skyLight.length == 0) return LightData.ZERO;
+			
 			int x = pos.getX() & 0xF; // Math.floorMod(pos.getX(), 16)
 			int y = pos.getY() & 0xF;
 			int z = pos.getZ() & 0xF;
@@ -229,8 +231,8 @@ public LightData getLightData(Vector3i pos) {
 			int blockHalfByteIndex = blockByteIndex >> 1; // blockByteIndex / 2 
 			boolean largeHalf = (blockByteIndex & 0x1) != 0; // (blockByteIndex % 2) == 0
 
-			int blockLight = getByteHalf(this.blockLight[blockHalfByteIndex], largeHalf);
-			int skyLight = getByteHalf(this.skyLight[blockHalfByteIndex], largeHalf);
+			int blockLight = this.blockLight.length > 0 ? getByteHalf(this.blockLight[blockHalfByteIndex], largeHalf) : 0;
+			int skyLight = this.skyLight.length > 0 ? getByteHalf(this.skyLight[blockHalfByteIndex], largeHalf) : 0;
 			
 			return new LightData(skyLight, blockLight);
 		}
diff --git a/BlueMapCore/src/main/java/de/bluecolored/bluemap/core/mca/ChunkAnvil116.java b/BlueMapCore/src/main/java/de/bluecolored/bluemap/core/mca/ChunkAnvil116.java
index 0d0d7c1a..bb185642 100644
--- a/BlueMapCore/src/main/java/de/bluecolored/bluemap/core/mca/ChunkAnvil116.java
+++ b/BlueMapCore/src/main/java/de/bluecolored/bluemap/core/mca/ChunkAnvil116.java
@@ -154,9 +154,9 @@ public Section(CompoundTag sectionData) {
 			this.skyLight = sectionData.getByteArray("SkyLight");
 			this.blocks = sectionData.getLongArray("BlockStates");
 
-			if (blocks.length < 256) blocks = Arrays.copyOf(blocks, 256);
-			if (blockLight.length < 2048) blockLight = Arrays.copyOf(blockLight, 2048);
-			if (skyLight.length < 2048) skyLight = Arrays.copyOf(skyLight, 2048);
+			if (blocks.length < 256 && blocks.length > 0) blocks = Arrays.copyOf(blocks, 256);
+			if (blockLight.length < 2048 && blockLight.length > 0) blockLight = Arrays.copyOf(blockLight, 2048);
+			if (skyLight.length < 2048 && skyLight.length > 0) skyLight = Arrays.copyOf(skyLight, 2048);
 			
 			//read block palette
 			ListTag<CompoundTag> paletteTag = (ListTag<CompoundTag>) sectionData.getListTag("Palette");
@@ -219,6 +219,8 @@ public BlockState getBlockState(Vector3i pos) {
 		}
 		
 		public LightData getLightData(Vector3i pos) {
+			if (blockLight.length == 0 && skyLight.length == 0) return LightData.ZERO;
+			
 			int x = pos.getX() & 0xF; // Math.floorMod(pos.getX(), 16)
 			int y = pos.getY() & 0xF;
 			int z = pos.getZ() & 0xF;
@@ -226,8 +228,8 @@ public LightData getLightData(Vector3i pos) {
 			int blockHalfByteIndex = blockByteIndex >> 1; // blockByteIndex / 2 
 			boolean largeHalf = (blockByteIndex & 0x1) != 0; // (blockByteIndex % 2) == 0
 
-			int blockLight = getByteHalf(this.blockLight[blockHalfByteIndex], largeHalf);
-			int skyLight = getByteHalf(this.skyLight[blockHalfByteIndex], largeHalf);
+			int blockLight = this.blockLight.length > 0 ? getByteHalf(this.blockLight[blockHalfByteIndex], largeHalf) : 0;
+			int skyLight = this.skyLight.length > 0 ? getByteHalf(this.skyLight[blockHalfByteIndex], largeHalf) : 0;
 			
 			return new LightData(skyLight, blockLight);
 		}