diff --git a/BauSystem/BauSystem_RegionFixed/src/de/steamwar/bausystem/region/fixed/FixedFlagStorage.java b/BauSystem/BauSystem_RegionFixed/src/de/steamwar/bausystem/region/fixed/FixedFlagStorage.java
index 293e0121..c902f941 100644
--- a/BauSystem/BauSystem_RegionFixed/src/de/steamwar/bausystem/region/fixed/FixedFlagStorage.java
+++ b/BauSystem/BauSystem_RegionFixed/src/de/steamwar/bausystem/region/fixed/FixedFlagStorage.java
@@ -84,7 +84,12 @@ public class FixedFlagStorage implements FlagStorage {
 
     @Override
     public void clear() {
-        flagMap.clear();
+        for (Flag flag : Flag.getFlags()) {
+            if (flag == Flag.TESTBLOCK) continue;
+            if (flag == Flag.COLOR) continue;
+            if (flag == Flag.CHANGED) continue;
+            flagMap.remove(flag);
+        }
     }
 
     @Override
diff --git a/BauSystem/BauSystem_RegionFixed/src/de/steamwar/bausystem/region/fixed/FixedGlobalFlagStorage.java b/BauSystem/BauSystem_RegionFixed/src/de/steamwar/bausystem/region/fixed/FixedGlobalFlagStorage.java
index 1fc4be27..69766fee 100644
--- a/BauSystem/BauSystem_RegionFixed/src/de/steamwar/bausystem/region/fixed/FixedGlobalFlagStorage.java
+++ b/BauSystem/BauSystem_RegionFixed/src/de/steamwar/bausystem/region/fixed/FixedGlobalFlagStorage.java
@@ -91,7 +91,12 @@ public class FixedGlobalFlagStorage implements FlagStorage {
 
     @Override
     public void clear() {
-        flagMap.clear();
+        for (Flag flag : Flag.getFlags()) {
+            if (flag == Flag.TESTBLOCK) continue;
+            if (flag == Flag.COLOR) continue;
+            if (flag == Flag.CHANGED) continue;
+            flagMap.remove(flag);
+        }
     }
 
     @Override