diff --git a/src/pocketmine/level/format/region/Anvil.php b/src/pocketmine/level/format/region/Anvil.php
index 00ff85ed8..d33d80702 100644
--- a/src/pocketmine/level/format/region/Anvil.php
+++ b/src/pocketmine/level/format/region/Anvil.php
@@ -140,10 +140,10 @@ class Anvil extends McRegion{
 				$chunk["xPos"],
 				$chunk["zPos"],
 				$subChunks,
-				$chunk->Entities->getValue(),
-				$chunk->TileEntities->getValue(),
+				isset($chunk->Entities) ? $chunk->Entities->getValue() : [],
+				isset($chunk->TileEntities) ? $chunk->TileEntities->getValue() : [],
 				$biomeIds,
-				$chunk->HeightMap->getValue()
+				isset($chunk->HeightMap) ? $chunk->HeightMap->getValue() : []
 			);
 			$result->setLightPopulated(isset($chunk->LightPopulated) ? ((bool) $chunk->LightPopulated->getValue()) : false);
 			$result->setPopulated(isset($chunk->TerrainPopulated) ? ((bool) $chunk->TerrainPopulated->getValue()) : false);
diff --git a/src/pocketmine/level/format/region/McRegion.php b/src/pocketmine/level/format/region/McRegion.php
index 5b30d79ea..0baa3b460 100644
--- a/src/pocketmine/level/format/region/McRegion.php
+++ b/src/pocketmine/level/format/region/McRegion.php
@@ -135,10 +135,10 @@ class McRegion extends BaseLevelProvider{
 			$chunk = $chunk->Level;
 
 			$subChunks = [];
-			$fullIds = $chunk->Blocks instanceof ByteArrayTag ? $chunk->Blocks->getValue() : str_repeat("\x00", 32768);
-			$fullData = $chunk->Data instanceof ByteArrayTag ? $chunk->Data->getValue() : ($half = str_repeat("\x00", 16384));
-			$fullBlockLight = $chunk->BlockLight instanceof ByteArrayTag ? $chunk->BlockLight->getValue() : $half;
-			$fullSkyLight = $chunk->SkyLight instanceof ByteArrayTag ? $chunk->SkyLight->getValue() : str_repeat("\xff", 16384);
+			$fullIds = isset($chunk->Blocks) ? $chunk->Blocks->getValue() : str_repeat("\x00", 32768);
+			$fullData = isset($chunk->Data) ? $chunk->Data->getValue() : ($half = str_repeat("\x00", 16384));
+			$fullBlockLight = isset($chunk->BlockLight) ? $chunk->BlockLight->getValue() : $half;
+			$fullSkyLight = isset($chunk->SkyLight) ? $chunk->SkyLight->getValue() : str_repeat("\xff", 16384);
 
 			for($y = 0; $y < 8; ++$y){
 				$offset = ($y << 4);
@@ -181,10 +181,10 @@ class McRegion extends BaseLevelProvider{
 				$chunk["xPos"],
 				$chunk["zPos"],
 				$subChunks,
-				$chunk->Entities->getValue(),
-				$chunk->TileEntities->getValue(),
+				isset($chunk->Entities) ? $chunk->Entities->getValue() : [],
+				isset($chunk->TileEntities) ? $chunk->TileEntities->getValue() : [],
 				$biomeIds,
-				$chunk->HeightMap->getValue()
+				isset($chunk->HeightMap) ? $chunk->HeightMap->getValue() : [] //this shouldn't exist in normal mcregion worlds anyway...
 			);
 			$result->setLightPopulated(isset($chunk->LightPopulated) ? ((bool) $chunk->LightPopulated->getValue()) : false);
 			$result->setPopulated(isset($chunk->TerrainPopulated) ? ((bool) $chunk->TerrainPopulated->getValue()) : false);
diff --git a/src/pocketmine/level/format/region/PMAnvil.php b/src/pocketmine/level/format/region/PMAnvil.php
index ccca1cbdd..b291730e3 100644
--- a/src/pocketmine/level/format/region/PMAnvil.php
+++ b/src/pocketmine/level/format/region/PMAnvil.php
@@ -136,10 +136,10 @@ class PMAnvil extends Anvil{
 				$chunk["xPos"],
 				$chunk["zPos"],
 				$subChunks,
-				$chunk->Entities->getValue(),
-				$chunk->TileEntities->getValue(),
-				$chunk->Biomes->getValue(),
-				$chunk->HeightMap->getValue()
+				isset($chunk->Entities) ? $chunk->Entities->getValue() : [],
+				isset($chunk->TileEntities) ? $chunk->TileEntities->getValue() : [],
+				isset($chunk->Biomes) ? $chunk->Biomes->getValue() : "",
+				isset($chunk->HeightMap) ? $chunk->HeightMap->getValue() : []
 			);
 			$result->setLightPopulated(isset($chunk->LightPopulated) ? ((bool) $chunk->LightPopulated->getValue()) : false);
 			$result->setPopulated(isset($chunk->TerrainPopulated) ? ((bool) $chunk->TerrainPopulated->getValue()) : false);