diff --git a/worldedit-core/src/main/java/com/boydti/fawe/object/changeset/BlockBagChangeSet.java b/worldedit-core/src/main/java/com/boydti/fawe/object/changeset/BlockBagChangeSet.java
index e1ede0d10..4b9855523 100644
--- a/worldedit-core/src/main/java/com/boydti/fawe/object/changeset/BlockBagChangeSet.java
+++ b/worldedit-core/src/main/java/com/boydti/fawe/object/changeset/BlockBagChangeSet.java
@@ -112,7 +112,7 @@ public class BlockBagChangeSet extends AbstractDelegateChangeSet {
     @Override
     public void addTileCreate(CompoundTag nbt) {
         if (nbt.containsKey("items")) {
-            Map<String, Tag> map = nbt.getValue();
+            Map<String, Tag> map = new HashMap<>(nbt.getValue());
             map.remove("items");
         }
         super.addTileCreate(nbt);
diff --git a/worldedit-core/src/main/java/com/boydti/fawe/object/extent/StripNBTExtent.java b/worldedit-core/src/main/java/com/boydti/fawe/object/extent/StripNBTExtent.java
index 19b3df573..8407c9db9 100644
--- a/worldedit-core/src/main/java/com/boydti/fawe/object/extent/StripNBTExtent.java
+++ b/worldedit-core/src/main/java/com/boydti/fawe/object/extent/StripNBTExtent.java
@@ -13,6 +13,7 @@ import com.sk89q.worldedit.world.NbtValued;
 import com.sk89q.worldedit.world.block.BaseBlock;
 import com.sk89q.worldedit.world.block.BlockStateHolder;
 
+import java.util.HashMap;
 import java.util.Map;
 import java.util.Set;
 import javax.annotation.Nullable;
@@ -55,10 +56,11 @@ public class StripNBTExtent extends AbstractDelegateExtent {
             return block;
         }
         CompoundTag nbt = localBlock.getNbtData();
-        Map<String, Tag> value = nbt.getValue();
+        Map<String, Tag> value = new HashMap<>(nbt.getValue());
         for (String key : strip) {
             value.remove(key);
         }
+        localBlock.toBaseBlock(new CompoundTag(value));
         return (B) localBlock;
     }
 
@@ -67,10 +69,11 @@ public class StripNBTExtent extends AbstractDelegateExtent {
             return entity;
         }
         CompoundTag nbt = entity.getNbtData();
-        Map<String, Tag> value = nbt.getValue();
+        Map<String, Tag> value = new HashMap<>(nbt.getValue());
         for (String key : strip) {
             value.remove(key);
         }
+        entity.setNbtData(new CompoundTag(value));
         return entity;
     }
 }
diff --git a/worldedit-core/src/main/java/com/sk89q/worldedit/extent/transform/BlockTransformExtent.java b/worldedit-core/src/main/java/com/sk89q/worldedit/extent/transform/BlockTransformExtent.java
index 7a1d67ec9..1bb227c10 100644
--- a/worldedit-core/src/main/java/com/sk89q/worldedit/extent/transform/BlockTransformExtent.java
+++ b/worldedit-core/src/main/java/com/sk89q/worldedit/extent/transform/BlockTransformExtent.java
@@ -46,6 +46,7 @@ import org.jetbrains.annotations.NotNull;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collection;
+import java.util.HashMap;
 import java.util.List;
 import java.util.Locale;
 import java.util.Map;
@@ -336,8 +337,9 @@ public class BlockTransformExtent extends ResettableExtent {
                     Direction newDirection = Direction.findClosest(applyAbsolute, Direction.Flag.CARDINAL | Direction.Flag.ORDINAL | Direction.Flag.SECONDARY_ORDINAL);
 
                     if (newDirection != null) {
-                        Map<String, Tag> values = tag.getValue();
+                        Map<String, Tag> values = new HashMap<>(tag.getValue());
                         values.put("Rot", new ByteTag((byte) MCDirections.toRotation(newDirection)));
+                        tag = new CompoundTag(values);
                     }
                 }
             }