diff --git a/SubstrateCS/Properties/AssemblyInfo.cs b/SubstrateCS/Properties/AssemblyInfo.cs
index c2c5480..a180b67 100644
--- a/SubstrateCS/Properties/AssemblyInfo.cs
+++ b/SubstrateCS/Properties/AssemblyInfo.cs
@@ -30,8 +30,8 @@ using System.Runtime.InteropServices;
 //      Build Number
 //      Revision
 //
-[assembly: AssemblyVersion("1.3.0.0")]
-[assembly: AssemblyFileVersion("1.3.0.0")]
+[assembly: AssemblyVersion("1.3.1.0")]
+[assembly: AssemblyFileVersion("1.3.1.0")]
 
 // This library is compatible with all CLS-compliant .NET programming languages.
 [assembly: CLSCompliant(true)]
\ No newline at end of file
diff --git a/SubstrateCS/Source/AnvilRegion.cs b/SubstrateCS/Source/AnvilRegion.cs
index 189f1b4..343aade 100644
--- a/SubstrateCS/Source/AnvilRegion.cs
+++ b/SubstrateCS/Source/AnvilRegion.cs
@@ -71,7 +71,7 @@ namespace Substrate
 
         protected override IChunk CreateChunkCore (int cx, int cz)
         {
-            return AnvilChunk.Create(cz, cz);
+            return AnvilChunk.Create(cx, cz);
         }
 
         protected override IChunk CreateChunkVerifiedCore (NbtTree tree)
diff --git a/SubstrateCS/Source/BetaRegion.cs b/SubstrateCS/Source/BetaRegion.cs
index f1fa837..cee4afa 100644
--- a/SubstrateCS/Source/BetaRegion.cs
+++ b/SubstrateCS/Source/BetaRegion.cs
@@ -71,7 +71,7 @@ namespace Substrate
 
         protected override IChunk CreateChunkCore (int cx, int cz)
         {
-            return AlphaChunk.Create(cz, cz);
+            return AlphaChunk.Create(cx, cz);
         }
 
         protected override IChunk CreateChunkVerifiedCore (NbtTree tree)