diff --git a/BauSystem_15/src/de/steamwar/bausystem/utils/FlatteningWrapper15.java b/BauSystem_15/src/de/steamwar/bausystem/utils/FlatteningWrapper15.java
index b1d4ddf2..fb02039e 100644
--- a/BauSystem_15/src/de/steamwar/bausystem/utils/FlatteningWrapper15.java
+++ b/BauSystem_15/src/de/steamwar/bausystem/utils/FlatteningWrapper15.java
@@ -43,6 +43,7 @@ import com.sk89q.worldedit.session.ClipboardHolder;
 import com.sk89q.worldedit.world.World;
 import com.sk89q.worldedit.world.block.BaseBlock;
 import com.sk89q.worldedit.world.block.BlockTypes;
+import de.steamwar.bausystem.BauSystem;
 import de.steamwar.bausystem.region.Color;
 import de.steamwar.bausystem.region.PasteOptions;
 import de.steamwar.bausystem.region.Point;
@@ -143,8 +144,9 @@ public class FlatteningWrapper15 implements FlatteningWrapper {
                 changeColor(clipboard, pasteOptions.getColor());
             }
 
+
             Set<String> blocks = new HashSet<>();
-            if (pasteOptions.isOnlyColors()) {
+            {
                 blocks.add("minecraft:" + pasteOptions.getColor().name().toLowerCase() + "_wool");
                 blocks.add("minecraft:" + pasteOptions.getColor().name().toLowerCase() + "_terracotta");
                 blocks.add("minecraft:" + pasteOptions.getColor().name().toLowerCase() + "_glazed_terracotta");
@@ -154,13 +156,15 @@ public class FlatteningWrapper15 implements FlatteningWrapper {
                 blocks.add("minecraft:" + pasteOptions.getColor().name().toLowerCase() + "_concrete_powder");
                 blocks.add("minecraft:" + pasteOptions.getColor().name().toLowerCase() + "_carpet");
             }
+
             e.setMask(new Mask() {
                 @Override
                 public boolean test(BlockVector3 blockVector3) {
                     BaseBlock block = clipboard.getFullBlock(blockVector3);
                     String blockName = block.toString().toLowerCase();
-                    if (pasteOptions.isTestBlock() && blockName.equals("minecraft.water")) return true;
-                    return blocks.contains(blockName);
+                    if (blocks.contains(blockName) && pasteOptions.isOnlyColors()) return true;
+                    if (pasteOptions.isTestBlock() && blockName.startsWith("minecraft:water")) return false;
+                    return true;
                 }
 
                 @Nullable
@@ -168,6 +172,9 @@ public class FlatteningWrapper15 implements FlatteningWrapper {
                 public Mask2D toMask2D() {
                     return null;
                 }
+                public Mask copy() {
+                    return this;
+                }
             });
 
             ClipboardHolder ch = new ClipboardHolder(clipboard);
@@ -182,7 +189,7 @@ public class FlatteningWrapper15 implements FlatteningWrapper {
             }
 
             if (pasteOptions.isReset()) {
-                e.setBlocks((Region) new CuboidRegion(toBlockVector3(pasteOptions.getMinPoint()), toBlockVector3(pasteOptions.getMaxPoint())), Objects.requireNonNull(BlockTypes.AIR).getDefaultState().toBaseBlock());
+                e.setBlocks(new CuboidRegion(toBlockVector3(pasteOptions.getMinPoint()), toBlockVector3(pasteOptions.getMaxPoint())), Objects.requireNonNull(BlockTypes.AIR).getDefaultState().toBaseBlock());
                 if (pasteOptions.getWaterLevel() != 0) {
                     e.setBlocks((Region) new CuboidRegion(toBlockVector3(pasteOptions.getMinPoint()), toBlockVector3(pasteOptions.getMaxPoint()).withY(pasteOptions.getWaterLevel())), Objects.requireNonNull(BlockTypes.WATER).getDefaultState().toBaseBlock());
                 }