diff --git a/PlotSquared/pom.xml b/PlotSquared/pom.xml
index 94edc9832..c51ea345e 100644
--- a/PlotSquared/pom.xml
+++ b/PlotSquared/pom.xml
@@ -6,7 +6,7 @@
     <groupId>com.intellectualcrafters</groupId>
 
     <artifactId>PlotSquared</artifactId>
-    <version>2.3.6</version>
+    <version>2.3.7</version>
     <name>PlotSquared</name>
     <packaging>jar</packaging>
     <build>
diff --git a/PlotSquared/src/main/java/com/intellectualcrafters/plot/generator/DefaultPlotManager.java b/PlotSquared/src/main/java/com/intellectualcrafters/plot/generator/DefaultPlotManager.java
index 613004b99..97d4ae5fe 100644
--- a/PlotSquared/src/main/java/com/intellectualcrafters/plot/generator/DefaultPlotManager.java
+++ b/PlotSquared/src/main/java/com/intellectualcrafters/plot/generator/DefaultPlotManager.java
@@ -662,13 +662,13 @@ public class DefaultPlotManager extends PlotManager {
 
         PlotHelper.setSimpleCuboid(w, new Location(w, sx, Math.min(dpw.WALL_HEIGHT, dpw.ROAD_HEIGHT) + 1, sz + 1), new Location(w, ex + 1, 257 + 1, ez), new PlotBlock((short) 0, (byte) 0));
 
-        PlotHelper.setSimpleCuboid(w, new Location(w, sx, 1, sz + 1), new Location(w, sx + 1, dpw.WALL_HEIGHT + 1, ez), dpw.WALL_FILLING);
-        PlotHelper.setSimpleCuboid(w, new Location(w, sx, dpw.WALL_HEIGHT + 1, sz + 1), new Location(w, sx + 1, dpw.WALL_HEIGHT + 2, ez), dpw.WALL_BLOCK);
+        PlotHelper.setCuboid(w, new Location(w, sx, 1, sz + 1), new Location(w, sx + 1, dpw.WALL_HEIGHT + 1, ez), dpw.WALL_FILLING);
+        PlotHelper.setCuboid(w, new Location(w, sx, dpw.WALL_HEIGHT + 1, sz + 1), new Location(w, sx + 1, dpw.WALL_HEIGHT + 2, ez), dpw.WALL_BLOCK);
 
-        PlotHelper.setSimpleCuboid(w, new Location(w, ex, 1, sz + 1), new Location(w, ex + 1, dpw.WALL_HEIGHT + 1, ez), dpw.WALL_FILLING);
-        PlotHelper.setSimpleCuboid(w, new Location(w, ex, dpw.WALL_HEIGHT + 1, sz + 1), new Location(w, ex + 1, dpw.WALL_HEIGHT + 2, ez), dpw.WALL_BLOCK);
+        PlotHelper.setCuboid(w, new Location(w, ex, 1, sz + 1), new Location(w, ex + 1, dpw.WALL_HEIGHT + 1, ez), dpw.WALL_FILLING);
+        PlotHelper.setCuboid(w, new Location(w, ex, dpw.WALL_HEIGHT + 1, sz + 1), new Location(w, ex + 1, dpw.WALL_HEIGHT + 2, ez), dpw.WALL_BLOCK);
 
-        PlotHelper.setSimpleCuboid(w, new Location(w, sx + 1, 1, sz + 1), new Location(w, ex, dpw.ROAD_HEIGHT + 1, ez), dpw.ROAD_BLOCK);
+        PlotHelper.setCuboid(w, new Location(w, sx + 1, 1, sz + 1), new Location(w, ex, dpw.ROAD_HEIGHT + 1, ez), dpw.ROAD_BLOCK);
 
         return true;
     }
@@ -688,13 +688,13 @@ public class DefaultPlotManager extends PlotManager {
 
         PlotHelper.setSimpleCuboid(w, new Location(w, sx, Math.min(dpw.WALL_HEIGHT, dpw.ROAD_HEIGHT) + 1, sz + 1), new Location(w, ex + 1, 257, ez), new PlotBlock((short) 0, (byte) 0));
 
-        PlotHelper.setSimpleCuboid(w, new Location(w, sx + 1, 1, sz), new Location(w, ex, dpw.WALL_HEIGHT + 1, sz + 1), dpw.WALL_FILLING);
-        PlotHelper.setSimpleCuboid(w, new Location(w, sx + 1, dpw.WALL_HEIGHT + 1, sz), new Location(w, ex, dpw.WALL_HEIGHT + 2, sz + 1), dpw.WALL_BLOCK);
+        PlotHelper.setCuboid(w, new Location(w, sx + 1, 1, sz), new Location(w, ex, dpw.WALL_HEIGHT + 1, sz + 1), dpw.WALL_FILLING);
+        PlotHelper.setCuboid(w, new Location(w, sx + 1, dpw.WALL_HEIGHT + 1, sz), new Location(w, ex, dpw.WALL_HEIGHT + 2, sz + 1), dpw.WALL_BLOCK);
 
-        PlotHelper.setSimpleCuboid(w, new Location(w, sx + 1, 1, ez), new Location(w, ex, dpw.WALL_HEIGHT + 1, ez + 1), dpw.WALL_FILLING);
-        PlotHelper.setSimpleCuboid(w, new Location(w, sx + 1, dpw.WALL_HEIGHT + 1, ez), new Location(w, ex, dpw.WALL_HEIGHT + 2, ez + 1), dpw.WALL_BLOCK);
+        PlotHelper.setCuboid(w, new Location(w, sx + 1, 1, ez), new Location(w, ex, dpw.WALL_HEIGHT + 1, ez + 1), dpw.WALL_FILLING);
+        PlotHelper.setCuboid(w, new Location(w, sx + 1, dpw.WALL_HEIGHT + 1, ez), new Location(w, ex, dpw.WALL_HEIGHT + 2, ez + 1), dpw.WALL_BLOCK);
 
-        PlotHelper.setSimpleCuboid(w, new Location(w, sx + 1, 1, sz + 1), new Location(w, ex, dpw.ROAD_HEIGHT + 1, ez), dpw.ROAD_BLOCK);
+        PlotHelper.setCuboid(w, new Location(w, sx + 1, 1, sz + 1), new Location(w, ex, dpw.ROAD_HEIGHT + 1, ez), dpw.ROAD_BLOCK);
 
         return true;
     }
@@ -712,7 +712,7 @@ public class DefaultPlotManager extends PlotManager {
         final int ez = (sz + dpw.ROAD_WIDTH) - 1;
 
         PlotHelper.setSimpleCuboid(w, new Location(w, sx, dpw.ROAD_HEIGHT + 1, sz + 1), new Location(w, ex + 1, 257, ez), new PlotBlock((short) 0, (byte) 0));
-        PlotHelper.setSimpleCuboid(w, new Location(w, sx + 1, 1, sz + 1), new Location(w, ex, dpw.ROAD_HEIGHT + 1, ez), dpw.ROAD_BLOCK);
+        PlotHelper.setCuboid(w, new Location(w, sx + 1, 1, sz + 1), new Location(w, ex, dpw.ROAD_HEIGHT + 1, ez), dpw.ROAD_BLOCK);
 
         return true;
     }
diff --git a/PlotSquared/src/main/java/com/intellectualcrafters/plot/object/PlotWorld.java b/PlotSquared/src/main/java/com/intellectualcrafters/plot/object/PlotWorld.java
index 9a249156c..c232caf15 100644
--- a/PlotSquared/src/main/java/com/intellectualcrafters/plot/object/PlotWorld.java
+++ b/PlotSquared/src/main/java/com/intellectualcrafters/plot/object/PlotWorld.java
@@ -23,11 +23,13 @@ package com.intellectualcrafters.plot.object;
 
 import com.intellectualcrafters.plot.config.Configuration;
 import com.intellectualcrafters.plot.config.ConfigurationNode;
+
 import org.bukkit.Material;
 import org.bukkit.block.Biome;
 import org.bukkit.configuration.ConfigurationSection;
 
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.HashMap;
 import java.util.List;
 
@@ -44,7 +46,7 @@ public abstract class PlotWorld {
     public final static boolean SCHEMATIC_ON_CLAIM_DEFAULT = false;
     public final static String SCHEMATIC_FILE_DEFAULT = "null";
     public final static List<String> SCHEMATICS_DEFAULT = null;
-    public final static List<String> DEFAULT_FLAGS_DEFAULT = new ArrayList<>();
+    public final static List<String> DEFAULT_FLAGS_DEFAULT = Arrays.asList();
     public final static boolean USE_ECONOMY_DEFAULT = false;
     public final static double PLOT_PRICE_DEFAULT = 100;
     public final static double MERGE_PRICE_DEFAULT = 100;
@@ -193,7 +195,6 @@ public abstract class PlotWorld {
         options.put("event.spawn.custom", PlotWorld.SPAWN_CUSTOM_DEFAULT);
         options.put("event.spawn.breeding", PlotWorld.SPAWN_BREEDING_DEFAULT);
         final ConfigurationNode[] settings = getSettingNodes();
-
         /*
          * Saving generator specific settings
          */
diff --git a/PlotSquared/src/main/java/com/intellectualcrafters/plot/object/StringWrapper.java b/PlotSquared/src/main/java/com/intellectualcrafters/plot/object/StringWrapper.java
index 4b1619bcd..d36e6a7b7 100644
--- a/PlotSquared/src/main/java/com/intellectualcrafters/plot/object/StringWrapper.java
+++ b/PlotSquared/src/main/java/com/intellectualcrafters/plot/object/StringWrapper.java
@@ -74,6 +74,9 @@ public class StringWrapper {
      */
     @Override
     public int hashCode() {
+        if (this.value == null) {
+            return 0;
+        }
         return this.value.toLowerCase().hashCode();
     }
 }
diff --git a/PlotSquared/src/main/java/com/intellectualcrafters/plot/util/PlotHelper.java b/PlotSquared/src/main/java/com/intellectualcrafters/plot/util/PlotHelper.java
index 76a838d0c..0627ff8d3 100644
--- a/PlotSquared/src/main/java/com/intellectualcrafters/plot/util/PlotHelper.java
+++ b/PlotSquared/src/main/java/com/intellectualcrafters/plot/util/PlotHelper.java
@@ -249,7 +249,7 @@ public class PlotHelper {
     }
 
     public static void setSign(final Player player, final Plot p) {
-        setSign(player.getWorld(), player.getName(), p);
+        setSign(Bukkit.getWorld(p.world), player.getName(), p);
     }
 
     @SuppressWarnings("deprecation")
@@ -737,7 +737,41 @@ public class PlotHelper {
 
     }
 
+    public static void setCuboid(final World world, final Location pos1, final Location pos2, final PlotBlock newblock) {
+        if (!canSetFast) {
+            for (int y = pos1.getBlockY(); y < pos2.getBlockY(); y++) {
+                for (int x = pos1.getBlockX(); x < pos2.getBlockX(); x++) {
+                    for (int z = pos1.getBlockZ(); z < pos2.getBlockZ(); z++) {
+                        final Block block = world.getBlockAt(x, y, z);
+                        if (!((block.getTypeId() == newblock.id) && (block.getData() == newblock.data))) {
+                            block.setTypeIdAndData(newblock.id, newblock.data, false);
+                        }
+                    }
+                }
+            }
+        } else {
+            try {
+                for (int y = pos1.getBlockY(); y < pos2.getBlockY(); y++) {
+                    for (int x = pos1.getBlockX(); x < pos2.getBlockX(); x++) {
+                        for (int z = pos1.getBlockZ(); z < pos2.getBlockZ(); z++) {
+                            final Block block = world.getBlockAt(x, y, z);
+                            if (!((block.getTypeId() == newblock.id) && (block.getData() == newblock.data))) {
+                                SetBlockFast.set(world, x, y, z, newblock.id, newblock.data);
+                            }
+                        }
+                    }
+                }
+            } catch (final Exception e) {
+                //
+            }
+        } 
+    }
+    
     public static void setCuboid(final World world, final Location pos1, final Location pos2, final PlotBlock[] blocks) {
+        if (blocks.length == 1) {
+            setCuboid(world, pos1, pos2, blocks[0]);
+            return;
+        }
         if (!canSetFast) {
             for (int y = pos1.getBlockY(); y < pos2.getBlockY(); y++) {
                 for (int x = pos1.getBlockX(); x < pos2.getBlockX(); x++) {
diff --git a/PlotSquared/src/main/java/com/intellectualcrafters/plot/uuid/PlotUUIDSaver.java b/PlotSquared/src/main/java/com/intellectualcrafters/plot/uuid/PlotUUIDSaver.java
index 2258effb5..ca6653eab 100644
--- a/PlotSquared/src/main/java/com/intellectualcrafters/plot/uuid/PlotUUIDSaver.java
+++ b/PlotSquared/src/main/java/com/intellectualcrafters/plot/uuid/PlotUUIDSaver.java
@@ -59,7 +59,9 @@ public class PlotUUIDSaver implements UUIDSaver {
                     uuid = player.getUniqueId();
                     if (!UUIDHandler.uuidExists(uuid)) {
                         name = player.getName();
-                        UUIDHandler.add(new StringWrapper(name), uuid);
+                        if (name != null) {
+                            UUIDHandler.add(new StringWrapper(name), uuid);
+                        }
                     }
                 }