diff --git a/.github/workflows/sanitizer.yml b/.github/workflows/sanitizer.yml
new file mode 100644
index 000000000..9bba5f6fd
--- /dev/null
+++ b/.github/workflows/sanitizer.yml
@@ -0,0 +1,56 @@
+name: C/C++ Sanitizer
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  job1:
+    name: adress-sanitizer
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: lukka/get-cmake@latest    
+    - uses: lukka/set-shell-env@v1
+      with:
+        CXX: clang++
+        CC: clang
+    
+    - name: configure and build
+      uses: lukka/run-cmake@v2
+      with:
+        cmakeListsOrSettingsJson: CMakeListsTxtAdvanced
+        cmakeListsTxtPath: '${{ github.workspace }}/CMakeLists.txt'
+        cmakeAppendedArgs: '-GNinja -DCMAKE_BUILD_TYPE=Debug -DASSIMP_ASAN=ON'
+        buildWithCMakeArgs: '-- -v'
+        buildDirectory: '${{ github.workspace }}/build/'
+    
+    - name: test
+      run: cd build/bin && ./unit
+      shell: bash
+
+  job2:
+    name: undefined-behavior-sanitizer
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: lukka/get-cmake@latest    
+    - uses: lukka/set-shell-env@v1
+      with:
+        CXX: clang++
+        CC: clang
+    
+    - name: configure and build
+      uses: lukka/run-cmake@v2
+      with:
+        cmakeListsOrSettingsJson: CMakeListsTxtAdvanced
+        cmakeListsTxtPath: '${{ github.workspace }}/CMakeLists.txt'
+        cmakeAppendedArgs: '-GNinja -DCMAKE_BUILD_TYPE=Debug -DASSIMP_UBSAN=ON'
+        buildWithCMakeArgs: '-- -v'
+        buildDirectory: '${{ github.workspace }}/build/'
+    
+    - name: test
+      run: cd build/bin && ./unit
+      shell: bash
diff --git a/code/Common/SceneCombiner.cpp b/code/Common/SceneCombiner.cpp
index 62efe2ece..4d2a411f2 100644
--- a/code/Common/SceneCombiner.cpp
+++ b/code/Common/SceneCombiner.cpp
@@ -979,7 +979,7 @@ void GetArrayCopy(Type*& dest, ai_uint num ) {
 
     dest = new Type[num];
     ::memcpy(dest, old, sizeof(Type) * num);
-    }
+}
 
 // ------------------------------------------------------------------------------------------------
 void SceneCombiner::CopySceneFlat(aiScene** _dest,const aiScene* src) {
@@ -1269,9 +1269,6 @@ void SceneCombiner::Copy(aiBone** _dest, const aiBone* src) {
 
     // get a flat copy
     *dest = *src;
-
-    // and reallocate all arrays
-    GetArrayCopy( dest->mWeights, dest->mNumWeights );
 }
 
 // ------------------------------------------------------------------------------------------------
diff --git a/code/FBX/FBXConverter.cpp b/code/FBX/FBXConverter.cpp
index 880b5de76..1bf977189 100644
--- a/code/FBX/FBXConverter.cpp
+++ b/code/FBX/FBXConverter.cpp
@@ -3401,7 +3401,8 @@ void FBXConverter::ConvertGlobalSettings() {
     mSceneOut->mMetaData->Set(5, "CoordAxisSign", doc.GlobalSettings().CoordAxisSign());
     mSceneOut->mMetaData->Set(6, "OriginalUpAxis", doc.GlobalSettings().OriginalUpAxis());
     mSceneOut->mMetaData->Set(7, "OriginalUpAxisSign", doc.GlobalSettings().OriginalUpAxisSign());
-    mSceneOut->mMetaData->Set(8, "UnitScaleFactor", (double)doc.GlobalSettings().UnitScaleFactor());
+    //const double unitScaleFactor = (double)doc.GlobalSettings().UnitScaleFactor();
+    mSceneOut->mMetaData->Set(8, "UnitScaleFactor", doc.GlobalSettings().UnitScaleFactor());
     mSceneOut->mMetaData->Set(9, "OriginalUnitScaleFactor", doc.GlobalSettings().OriginalUnitScaleFactor());
     mSceneOut->mMetaData->Set(10, "AmbientColor", doc.GlobalSettings().AmbientColor());
     mSceneOut->mMetaData->Set(11, "FrameRate", (int)doc.GlobalSettings().TimeMode());
diff --git a/include/assimp/mesh.h b/include/assimp/mesh.h
index bd987bc88..4b5af97ce 100644
--- a/include/assimp/mesh.h
+++ b/include/assimp/mesh.h
@@ -308,7 +308,10 @@ struct aiBone {
 
     //! Copy constructor
     aiBone(const aiBone &other) :
-            mName(other.mName), mNumWeights(other.mNumWeights), mWeights(nullptr), mOffsetMatrix(other.mOffsetMatrix) {
+            mName(other.mName),
+            mNumWeights(other.mNumWeights),
+            mWeights(nullptr),
+            mOffsetMatrix(other.mOffsetMatrix) {
         if (other.mWeights && other.mNumWeights) {
             mWeights = new aiVertexWeight[mNumWeights];
             ::memcpy(mWeights, other.mWeights, mNumWeights * sizeof(aiVertexWeight));
diff --git a/include/assimp/metadata.h b/include/assimp/metadata.h
index 28ddce567..cd7569ffe 100644
--- a/include/assimp/metadata.h
+++ b/include/assimp/metadata.h
@@ -320,7 +320,7 @@ struct aiMetadata {
     }
 
     template <typename T>
-    inline bool Set( const std::string &key, const T &value ) {
+    inline bool Set(const std::string &key, const T &value) {
         if (key.empty()) {
             return false;
         }
diff --git a/test/unit/utFBXImporterExporter.cpp b/test/unit/utFBXImporterExporter.cpp
index 88a3e067e..2f1ea79e8 100644
--- a/test/unit/utFBXImporterExporter.cpp
+++ b/test/unit/utFBXImporterExporter.cpp
@@ -210,13 +210,13 @@ TEST_F(utFBXImporterExporter, importUnitScaleFactor) {
     EXPECT_NE(nullptr, scene);
     EXPECT_NE(nullptr, scene->mMetaData);
 
-    double factor(0.0);
+    float factor(0.0f);
     scene->mMetaData->Get("UnitScaleFactor", factor);
-    EXPECT_DOUBLE_EQ(500.0, factor);
+    EXPECT_EQ(500.0f, factor);
 
-    scene->mMetaData->Set("UnitScaleFactor", factor * 2);
+    scene->mMetaData->Set("UnitScaleFactor", factor * 2.0f);
     scene->mMetaData->Get("UnitScaleFactor", factor);
-    EXPECT_DOUBLE_EQ(1000.0, factor);
+    EXPECT_EQ(1000.0f, factor);
 }
 
 TEST_F(utFBXImporterExporter, importEmbeddedAsciiTest) {