diff --git a/src/ChunkBuffer.cpp b/src/ChunkBuffer.cpp
index 141601113..99bcdebef 100644
--- a/src/ChunkBuffer.cpp
+++ b/src/ChunkBuffer.cpp
@@ -151,7 +151,7 @@ void cChunkBuffer::SetBlocks(const BLOCKTYPE * a_src)
 			size_t j = 0;
 			// do nothing whilst 0
 			for (; j < segment_length && a_src[i * segment_length + j] == 0; j++);
-			if (j != (segment_length - 1))
+			if (j != segment_length)
 			{
 				m_Sections[i] = Allocate();
 				memcpy(
@@ -159,6 +159,9 @@ void cChunkBuffer::SetBlocks(const BLOCKTYPE * a_src)
 					&a_src[i * segment_length],
 					sizeof(BLOCKTYPE) * segment_length
 					);
+				memset(m_Sections[i]->m_BlockMeta,0x00,sizeof(m_Sections[i]->m_BlockMeta));
+				memset(m_Sections[i]->m_BlockLight,0x00,sizeof(m_Sections[i]->m_BlockLight));
+				memset(m_Sections[i]->m_BlockSkyLight,0xFF,sizeof(m_Sections[i]->m_BlockSkyLight));
 			}
 			else
 			{
@@ -186,7 +189,7 @@ void cChunkBuffer::SetMeta(const NIBBLETYPE * a_src)
 			size_t j = 0;
 			// do nothing whilst 0
 			for (; j < segment_length && a_src[i * segment_length + j] == 0; j++);
-			if (j != (segment_length - 1))
+			if (j != segment_length)
 			{
 				m_Sections[i] = Allocate();
 				memcpy(
@@ -194,6 +197,9 @@ void cChunkBuffer::SetMeta(const NIBBLETYPE * a_src)
 					&a_src[i * segment_length],
 					sizeof(BLOCKTYPE) * segment_length
 					);
+				memset(m_Sections[i]->m_BlockTypes,0x00,sizeof(m_Sections[i]->m_BlockTypes));
+				memset(m_Sections[i]->m_BlockLight,0x00,sizeof(m_Sections[i]->m_BlockLight));
+				memset(m_Sections[i]->m_BlockSkyLight,0xFF,sizeof(m_Sections[i]->m_BlockSkyLight));
 			}
 			else
 			{
@@ -222,7 +228,7 @@ void cChunkBuffer::SetLight(const NIBBLETYPE * a_src)
 			size_t j = 0;
 			// do nothing whilst 0
 			for (; j < segment_length && a_src[i * segment_length + j] == 0; j++);
-			if (j != (segment_length - 1))
+			if (j != segment_length)
 			{
 				m_Sections[i] = Allocate();
 				memcpy(
@@ -230,6 +236,9 @@ void cChunkBuffer::SetLight(const NIBBLETYPE * a_src)
 					&a_src[i * segment_length],
 					sizeof(BLOCKTYPE) * segment_length
 					);
+				memset(m_Sections[i]->m_BlockTypes,0x00,sizeof(m_Sections[i]->m_BlockTypes));
+				memset(m_Sections[i]->m_BlockMeta,0x00,sizeof(m_Sections[i]->m_BlockMeta));
+				memset(m_Sections[i]->m_BlockSkyLight,0xFF,sizeof(m_Sections[i]->m_BlockSkyLight));
 			}
 			else
 			{
@@ -258,7 +267,7 @@ void cChunkBuffer::SetSkyLight  (const NIBBLETYPE * a_src)
 			size_t j = 0;
 			// do nothing whilst 0
 			for (; j < segment_length && a_src[i * segment_length + j] == 0xFF; j++);
-			if (j != (segment_length -1))
+			if (j != segment_length)
 			{
 				m_Sections[i] = Allocate();
 				memcpy(
@@ -266,6 +275,9 @@ void cChunkBuffer::SetSkyLight  (const NIBBLETYPE * a_src)
 					&a_src[i * segment_length],
 					sizeof(BLOCKTYPE) * segment_length
 					);
+				memset(m_Sections[i]->m_BlockTypes,0x00,sizeof(m_Sections[i]->m_BlockTypes));
+				memset(m_Sections[i]->m_BlockMeta,0x00,sizeof(m_Sections[i]->m_BlockMeta));
+				memset(m_Sections[i]->m_BlockLight,0x00,sizeof(m_Sections[i]->m_BlockLight));
 			}
 			else
 			{
diff --git a/tests/ChunkBuffer/CMakeLists.txt b/tests/ChunkBuffer/CMakeLists.txt
index 73dc79e25..b216b1d39 100644
--- a/tests/ChunkBuffer/CMakeLists.txt
+++ b/tests/ChunkBuffer/CMakeLists.txt
@@ -18,3 +18,8 @@ add_test(NAME coordinates-test COMMAND coordinates-exe)
 add_executable(copies-exe Copies.cpp)
 target_link_libraries(copies-exe ChunkBuffer)
 add_test(NAME copies-test COMMAND copies-exe)
+
+add_executable(arraystocoords-exe ArraytoCoord.cpp)
+target_link_libraries(arraystocoords-exe ChunkBuffer)
+add_test(NAME arraystocoords-test COMMAND arraystocoords-exe)
+
diff --git a/tests/ChunkBuffer/Copies.cpp b/tests/ChunkBuffer/Copies.cpp
index 07879d129..eb149f25f 100644
--- a/tests/ChunkBuffer/Copies.cpp
+++ b/tests/ChunkBuffer/Copies.cpp
@@ -99,7 +99,6 @@ int main(int argc, char** argv)
 	DstBlockBuffer = NULL;
 	
 	SrcNibbleBuffer = new NIBBLETYPE[16 * 16 * 256/2];
-	for (int i = 0; i < 16 * 16 * 256 / 2; i += 4)
 	memset(SrcNibbleBuffer, 0x00, 16 * 16 * 256 /2);
 	buffer.SetMeta(SrcNibbleBuffer);
 	DstNibbleBuffer = new NIBBLETYPE[16 * 16 * 256/ 2];