diff --git a/forge110/src/main/java/com/boydti/fawe/forge/v110/ForgeChunk_All.java b/forge110/src/main/java/com/boydti/fawe/forge/v110/ForgeChunk_All.java
index 2e80c802..5cd3c156 100644
--- a/forge110/src/main/java/com/boydti/fawe/forge/v110/ForgeChunk_All.java
+++ b/forge110/src/main/java/com/boydti/fawe/forge/v110/ForgeChunk_All.java
@@ -267,8 +267,12 @@ public class ForgeChunk_All extends CharFaweChunk<Chunk, ForgeQueue_All> {
                 if (array == null) {
                     continue;
                 }
+                int countAir = this.getAir(j);
                 ExtendedBlockStorage section = sections[j];
                 if (section == null) {
+                    if (count == countAir) {
+                        continue;
+                    }
                     if (this.sectionPalettes != null && this.sectionPalettes[j] != null) {
                         section = sections[j] = new ExtendedBlockStorage(j << 4, flag);
                         getParent().setPalette(section, this.sectionPalettes[j]);
@@ -278,6 +282,10 @@ public class ForgeChunk_All extends CharFaweChunk<Chunk, ForgeQueue_All> {
                         sections[j] = section = new ExtendedBlockStorage(j << 4, flag);
                     }
                 } else if (count >= 4096) {
+                    if (count == countAir) {
+                        sections[j] = null;
+                        continue;
+                    }
                     if (this.sectionPalettes != null && this.sectionPalettes[j] != null) {
                         getParent().setPalette(section, this.sectionPalettes[j]);
                         getParent().setCount(0, count - this.getAir(j), section);
diff --git a/forge1710/src/main/java/com/boydti/fawe/forge/v1710/ForgeChunk_All.java b/forge1710/src/main/java/com/boydti/fawe/forge/v1710/ForgeChunk_All.java
index ef6153f6..14c23cd9 100644
--- a/forge1710/src/main/java/com/boydti/fawe/forge/v1710/ForgeChunk_All.java
+++ b/forge1710/src/main/java/com/boydti/fawe/forge/v1710/ForgeChunk_All.java
@@ -233,20 +233,33 @@ public class ForgeChunk_All extends CharFaweChunk<Chunk, ForgeQueue_All> {
             }
             // Efficiently merge sections
             for (int j = 0; j < sections.length; j++) {
-                if (this.getCount(j) == 0) {
+                int count = this.getCount(j);
+                if (count == 0) {
                     continue;
                 }
                 byte[] newIdArray = this.getByteIdArray(j);
                 if (newIdArray == null) {
                     continue;
                 }
+                int countAir = this.getAir(j);
                 NibbleArray newDataArray = this.getDataArray(j);
                 ExtendedBlockStorage section = sections[j];
-                if ((section == null) || (this.getCount(j) >= 4096)) {
+                if ((section == null)) {
+                    if (count == countAir) {
+                        continue;
+                    }
                     sections[j] = section = new ExtendedBlockStorage(j << 4, !getParent().getWorld().provider.hasNoSky);
                     section.setBlockLSBArray(newIdArray);
                     section.setBlockMetadataArray(newDataArray);
                     continue;
+                } else if (count >= 4096) {
+                    if (count == countAir) {
+                        sections[j] = null;
+                        continue;
+                    }
+                    section.setBlockLSBArray(newIdArray);
+                    section.setBlockMetadataArray(newDataArray);
+                    continue;
                 }
                 byte[] currentIdArray = section.getBlockLSBArray();
                 NibbleArray currentDataArray = section.getMetadataArray();
diff --git a/forge189/src/main/java/com/boydti/fawe/forge/v189/ForgeChunk_All.java b/forge189/src/main/java/com/boydti/fawe/forge/v189/ForgeChunk_All.java
index c5b23335..4520c3d1 100644
--- a/forge189/src/main/java/com/boydti/fawe/forge/v189/ForgeChunk_All.java
+++ b/forge189/src/main/java/com/boydti/fawe/forge/v189/ForgeChunk_All.java
@@ -184,14 +184,21 @@ public class ForgeChunk_All extends CharFaweChunk<Chunk, ForgeQueue_All> {
                 if (newArray == null) {
                     continue;
                 }
+                int countAir = this.getAir(j);
                 ExtendedBlockStorage section = sections[j];
-
                 if ((section == null)) {
+                    if (count == countAir) {
+                        continue;
+                    }
                     section = new ExtendedBlockStorage(j << 4, flag);
                     section.setData(newArray);
                     sections[j] = section;
                     continue;
                 } else if (count >= 4096){
+                    if (count == countAir) {
+                        sections[j] = null;
+                        continue;
+                    }
                     section.setData(newArray);
                     getParent().setCount(0, count - this.getAir(j), section);
                     continue;
diff --git a/forge194/src/main/java/com/boydti/fawe/forge/v194/ForgeChunk_All.java b/forge194/src/main/java/com/boydti/fawe/forge/v194/ForgeChunk_All.java
index c409671a..04d0c3dd 100644
--- a/forge194/src/main/java/com/boydti/fawe/forge/v194/ForgeChunk_All.java
+++ b/forge194/src/main/java/com/boydti/fawe/forge/v194/ForgeChunk_All.java
@@ -265,8 +265,12 @@ public class ForgeChunk_All extends CharFaweChunk<Chunk, ForgeQueue_All> {
                 if (array == null) {
                     continue;
                 }
+                int countAir = this.getAir(j);
                 ExtendedBlockStorage section = sections[j];
                 if (section == null) {
+                    if (count == countAir) {
+                        continue;
+                    }
                     if (this.sectionPalettes != null && this.sectionPalettes[j] != null) {
                         section = sections[j] = new ExtendedBlockStorage(j << 4, flag);
                         getParent().setPalette(section, this.sectionPalettes[j]);
@@ -276,6 +280,10 @@ public class ForgeChunk_All extends CharFaweChunk<Chunk, ForgeQueue_All> {
                         sections[j] = section = new ExtendedBlockStorage(j << 4, flag);
                     }
                 } else if (count >= 4096) {
+                    if (count == countAir) {
+                        sections[j] = null;
+                        continue;
+                    }
                     if (this.sectionPalettes != null && this.sectionPalettes[j] != null) {
                         getParent().setPalette(section, this.sectionPalettes[j]);
                         getParent().setCount(0, count - this.getAir(j), section);