diff --git a/CMakeLists.txt b/CMakeLists.txt
index aabadea15..b9f42eaf1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -158,7 +158,7 @@ EXECUTE_PROCESS(
 
 # Get the latest abbreviated commit hash of the working branch
 EXECUTE_PROCESS(
-  COMMAND git log -1 --format=%h
+  COMMAND git log -1 --format=%h --no-show-signature
   WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
   OUTPUT_VARIABLE GIT_COMMIT_HASH
   OUTPUT_STRIP_TRAILING_WHITESPACE
diff --git a/code/FBXMeshGeometry.cpp b/code/FBXMeshGeometry.cpp
index cc1a5a83e..8bfd60570 100644
--- a/code/FBXMeshGeometry.cpp
+++ b/code/FBXMeshGeometry.cpp
@@ -437,6 +437,9 @@ void ResolveVertexDataArray(std::vector<T>& data_out, const Scope& source,
     // deal with this more elegantly and with less redundancy, but right
     // now it seems unavoidable.
     if (MappingInformationType == "ByVertice" && isDirect) {
+        if (!HasElement(source, indexDataElementName)) {
+            return;
+        }
         std::vector<T> tempData;
 		ParseVectorDataArray(tempData, GetRequiredElement(source, dataElementName));
 
diff --git a/port/PyAssimp/pyassimp/helper.py b/port/PyAssimp/pyassimp/helper.py
index 7d9282745..f9163de2a 100644
--- a/port/PyAssimp/pyassimp/helper.py
+++ b/port/PyAssimp/pyassimp/helper.py
@@ -27,7 +27,7 @@ additional_dirs, ext_whitelist = [],[]
 if os.name=='posix':
     additional_dirs.append('./')
     additional_dirs.append('/usr/lib/')
-    additional_dirs.append('/usr/lib/x86_64-linux-gnu')
+    additional_dirs.append('/usr/lib/x86_64-linux-gnu/')
     additional_dirs.append('/usr/local/lib/')
 
     if 'LD_LIBRARY_PATH' in os.environ:
@@ -222,11 +222,17 @@ def search_library():
             for filename in os.listdir(curfolder):
                 # our minimum requirement for candidates is that
                 # they should contain 'assimp' somewhere in
-                # their name
-                if filename.lower().find('assimp')==-1 or\
-                    os.path.splitext(filename)[-1].lower() not in ext_whitelist:
+                # their name                                  
+                if filename.lower().find('assimp')==-1 : 
                     continue
-
+                is_out=1
+                for et in ext_whitelist:
+                  if et in filename.lower():
+                    is_out=0
+                    break
+                if is_out:
+                  continue
+                
                 library_path = os.path.join(curfolder, filename)
                 logger.debug('Try ' + library_path)
                 try:
diff --git a/test/unit/utFBXImporterExporter.cpp b/test/unit/utFBXImporterExporter.cpp
index d2576cfa1..1d6cdf883 100644
--- a/test/unit/utFBXImporterExporter.cpp
+++ b/test/unit/utFBXImporterExporter.cpp
@@ -70,6 +70,10 @@ TEST_F( utFBXImporterExporter, importBareBoxWithoutColorsAndTextureCoords ) {
     Assimp::Importer importer;
     const aiScene *scene = importer.ReadFile( ASSIMP_TEST_MODELS_DIR "/FBX/box.fbx", aiProcess_ValidateDataStructure );
     EXPECT_NE( nullptr, scene );
+    EXPECT_EQ(scene->mNumMeshes, 1);
+    aiMesh* mesh = scene->mMeshes[0];
+    EXPECT_EQ(mesh->mNumFaces, 12);
+    EXPECT_EQ(mesh->mNumVertices, 36);
 }
 
 TEST_F( utFBXImporterExporter, importPhongMaterial ) {