worldedit-core/src/main/java/com/fastasyncworldedit/core/function/pattern/BufferedPattern2D.java

@@ -33,7 +33,7 @@ public class BufferedPattern2D extends BufferedPattern {
 
     @Override
     public boolean set(BlockVector3 pos) {
-        return set.add(pos.x(), 0, pos.y());
+        return set.add(pos.x(), 0, pos.z());
     }
 
 }

worldedit-core/src/main/java/com/sk89q/worldedit/function/mask/NoiseFilter.java

@@ -97,7 +97,7 @@ public class NoiseFilter extends AbstractMask {
     @Override
     public boolean test(BlockVector3 vector) {
         //FAWE start - mutable
-        return noiseGenerator.noise(mutable.setComponents(vector.x(), vector.z(), vector.z())) <= density;
+        return noiseGenerator.noise(mutable.setComponents(vector.x(), vector.y(), vector.z())) <= density;
         //FAWE end
     }