diff --git a/apps/esmtool/esmtool.cpp b/apps/esmtool/esmtool.cpp
index 6d2b59ad98..d4569000bf 100644
--- a/apps/esmtool/esmtool.cpp
+++ b/apps/esmtool/esmtool.cpp
@@ -507,7 +507,7 @@ int clone(Arguments& info)
         esm.endRecord(typeName.toString());
 
         saved++;
-        int perc = (int)((saved / (float)recordCount)*100);
+        int perc = recordCount == 0 ? 100 : (int)((saved / (float)recordCount)*100);
         if (perc % 10 == 0)
         {
             std::cerr << "\r" << perc << "%";
diff --git a/apps/mwiniimporter/importer.cpp b/apps/mwiniimporter/importer.cpp
index 4fbe977201..5b229dc92b 100644
--- a/apps/mwiniimporter/importer.cpp
+++ b/apps/mwiniimporter/importer.cpp
@@ -860,11 +860,12 @@ std::vector<std::string>::iterator MwIniImporter::findString(std::vector<std::st
 }
 
 void MwIniImporter::addPaths(std::vector<boost::filesystem::path>& output, std::vector<std::string> input) {
-    for (auto& path : input) {
+    for (auto& path : input)
+    {
         if (path.front() == '"')
         {
-            path.erase(path.begin());
-            path.erase(path.end() - 1);
+            // Drop first and last characters - quotation marks
+            path = path.substr(1, path.size() - 2);
         }
         output.emplace_back(path);
     }
diff --git a/apps/opencs/model/doc/documentmanager.cpp b/apps/opencs/model/doc/documentmanager.cpp
index 531cfd2672..a2859beb5f 100644
--- a/apps/opencs/model/doc/documentmanager.cpp
+++ b/apps/opencs/model/doc/documentmanager.cpp
@@ -9,7 +9,7 @@
 #include "document.hpp"
 
 CSMDoc::DocumentManager::DocumentManager (const Files::ConfigurationManager& configuration)
-: mConfiguration (configuration), mEncoding (ToUTF8::WINDOWS_1252)
+: mConfiguration (configuration), mEncoding (ToUTF8::WINDOWS_1252), mFsStrict(false)
 {
     boost::filesystem::path projectPath = configuration.getUserDataPath() / "projects";
 
diff --git a/apps/opencs/model/prefs/shortcut.cpp b/apps/opencs/model/prefs/shortcut.cpp
index 27077ac833..924b9535e2 100644
--- a/apps/opencs/model/prefs/shortcut.cpp
+++ b/apps/opencs/model/prefs/shortcut.cpp
@@ -5,6 +5,8 @@
 #include <QAction>
 #include <QWidget>
 
+#include <components/debug/debuglog.hpp>
+
 #include "state.hpp"
 #include "shortcutmanager.hpp"
 
@@ -71,7 +73,14 @@ namespace CSMPrefs
 
     Shortcut::~Shortcut()
     {
-        State::get().getShortcutManager().removeShortcut(this);
+        try
+        {
+            State::get().getShortcutManager().removeShortcut(this);
+        }
+        catch(const std::exception& e)
+        {
+            Log(Debug::Error) << "Error in the destructor: " << e.what();
+        }
     }
 
     bool Shortcut::isEnabled() const
diff --git a/apps/opencs/model/world/actoradapter.cpp b/apps/opencs/model/world/actoradapter.cpp
index b89240a80f..2c827373d8 100644
--- a/apps/opencs/model/world/actoradapter.cpp
+++ b/apps/opencs/model/world/actoradapter.cpp
@@ -21,6 +21,11 @@ namespace CSMWorld
         return mIsBeast;
     }
 
+    ActorAdapter::RaceData::RaceData()
+    {
+        mIsBeast = false;
+    }
+
     bool ActorAdapter::RaceData::handlesPart(ESM::PartReferenceType type) const
     {
         switch (type)
@@ -83,6 +88,12 @@ namespace CSMWorld
     }
 
 
+    ActorAdapter::ActorData::ActorData()
+    {
+        mCreature = false;
+        mFemale = false;
+    }
+
     const std::string& ActorAdapter::ActorData::getId() const
     {
         return mId;
diff --git a/apps/opencs/model/world/actoradapter.hpp b/apps/opencs/model/world/actoradapter.hpp
index 1c9265be42..912a6bcb38 100644
--- a/apps/opencs/model/world/actoradapter.hpp
+++ b/apps/opencs/model/world/actoradapter.hpp
@@ -43,6 +43,8 @@ namespace CSMWorld
         class RaceData
         {
         public:
+            RaceData();
+
             /// Retrieves the id of the race represented
             const std::string& getId() const;
             /// Checks if it's a beast race
@@ -80,6 +82,8 @@ namespace CSMWorld
         class ActorData
         {
         public:
+            ActorData();
+
             /// Retrieves the id of the actor represented
             const std::string& getId() const;
             /// Checks if the actor is a creature
diff --git a/apps/opencs/model/world/commands.cpp b/apps/opencs/model/world/commands.cpp
index 4c70964791..5ddb753c58 100644
--- a/apps/opencs/model/world/commands.cpp
+++ b/apps/opencs/model/world/commands.cpp
@@ -198,7 +198,11 @@ CSMWorld::ModifyCommand::ModifyCommand (QAbstractItemModel& model, const QModelI
 
     if (mIndex.parent().isValid())
     {
-        setText ("Modify " + dynamic_cast<CSMWorld::IdTree*>(mModel)->nestedHeaderData (
+        CSMWorld::IdTree* tree = dynamic_cast<CSMWorld::IdTree*>(mModel);
+
+        assert(tree != nullptr);
+
+        setText ("Modify " + tree->nestedHeaderData (
                     mIndex.parent().column(), mIndex.column(), Qt::Horizontal, Qt::DisplayRole).toString());
     }
     else
diff --git a/apps/opencs/view/prefs/dialogue.cpp b/apps/opencs/view/prefs/dialogue.cpp
index 1f5772f18f..0d32ebd0ad 100644
--- a/apps/opencs/view/prefs/dialogue.cpp
+++ b/apps/opencs/view/prefs/dialogue.cpp
@@ -8,6 +8,8 @@
 #include <QStackedWidget>
 #include <QListWidgetItem>
 
+#include <components/debug/debuglog.hpp>
+
 #include "../../model/prefs/state.hpp"
 
 #include "page.hpp"
@@ -77,8 +79,15 @@ CSVPrefs::Dialogue::Dialogue()
 
 CSVPrefs::Dialogue::~Dialogue()
 {
-    if (isVisible())
-        CSMPrefs::State::get().save();
+    try
+    {
+        if (isVisible())
+            CSMPrefs::State::get().save();
+    }
+    catch(const std::exception& e)
+    {
+        Log(Debug::Error) << "Error in the destructor: " << e.what();
+    }
 }
 
 void CSVPrefs::Dialogue::closeEvent (QCloseEvent *event)
diff --git a/apps/opencs/view/render/cameracontroller.cpp b/apps/opencs/view/render/cameracontroller.cpp
index 524a798213..5dbb7a28c1 100644
--- a/apps/opencs/view/render/cameracontroller.cpp
+++ b/apps/opencs/view/render/cameracontroller.cpp
@@ -463,6 +463,7 @@ namespace CSVRender
         , mDistance(0)
         , mOrbitSpeed(osg::PI / 4)
         , mOrbitSpeedMult(4)
+        , mConstRoll(false)
     {
         CSMPrefs::Shortcut* naviPrimaryShortcut = new CSMPrefs::Shortcut("scene-navi-primary", widget);
         naviPrimaryShortcut->enable(false);
diff --git a/apps/opencs/view/render/pathgrid.cpp b/apps/opencs/view/render/pathgrid.cpp
index 9eb2765d38..1fa63bedc5 100644
--- a/apps/opencs/view/render/pathgrid.cpp
+++ b/apps/opencs/view/render/pathgrid.cpp
@@ -227,6 +227,8 @@ namespace CSVRender
         CSMWorld::IdTree* model = dynamic_cast<CSMWorld::IdTree*>(mData.getTableModel(
                 CSMWorld::UniversalId::Type_Pathgrids));
 
+        assert(model != nullptr);
+
         const CSMWorld::Pathgrid* source = getPathgridSource();
         if (source)
         {
@@ -360,6 +362,8 @@ namespace CSVRender
             CSMWorld::IdTree* model = dynamic_cast<CSMWorld::IdTree*>(mData.getTableModel(
                 CSMWorld::UniversalId::Type_Pathgrids));
 
+            assert(model != nullptr);
+
             // Want to remove nodes from end of list first
             std::sort(mSelected.begin(), mSelected.end(), std::greater<int>());
 
@@ -461,6 +465,8 @@ namespace CSVRender
             CSMWorld::IdTree* model = dynamic_cast<CSMWorld::IdTree*>(mData.getTableModel(
                 CSMWorld::UniversalId::Type_Pathgrids));
 
+            assert(model != nullptr);
+
             int parentColumn = mPathgridCollection.findColumnIndex(CSMWorld::Columns::ColumnId_PathgridEdges);
 
             std::set<int, std::greater<int> >::iterator row;
@@ -636,6 +642,8 @@ namespace CSVRender
         CSMWorld::IdTree* model = dynamic_cast<CSMWorld::IdTree*>(mData.getTableModel(
             CSMWorld::UniversalId::Type_Pathgrids));
 
+        assert(model != nullptr);
+
         int recordIndex = mPathgridCollection.getIndex(mId);
         int parentColumn = mPathgridCollection.findColumnIndex(CSMWorld::Columns::ColumnId_PathgridEdges);
 
diff --git a/apps/opencs/view/render/scenewidget.cpp b/apps/opencs/view/render/scenewidget.cpp
index 6cc64f6537..7e1666dc17 100644
--- a/apps/opencs/view/render/scenewidget.cpp
+++ b/apps/opencs/view/render/scenewidget.cpp
@@ -13,6 +13,7 @@
 #include <osg/Material>
 #include <osg/Version>
 
+#include <components/debug/debuglog.hpp>
 #include <components/resource/scenemanager.hpp>
 #include <components/resource/resourcesystem.hpp>
 #include <components/sceneutil/lightmanager.hpp>
@@ -96,7 +97,14 @@ RenderWidget::RenderWidget(QWidget *parent, Qt::WindowFlags f)
 
 RenderWidget::~RenderWidget()
 {
-    CompositeViewer::get().removeView(mView);
+    try
+    {
+        CompositeViewer::get().removeView(mView);
+    }
+    catch(const std::exception& e)
+    {
+        Log(Debug::Error) << "Error in the destructor: " << e.what();
+    }
 }
 
 void RenderWidget::flagAsModified()
diff --git a/apps/opencs/view/render/terraintexturemode.cpp b/apps/opencs/view/render/terraintexturemode.cpp
index 376258c5ed..274e647426 100644
--- a/apps/opencs/view/render/terraintexturemode.cpp
+++ b/apps/opencs/view/render/terraintexturemode.cpp
@@ -256,9 +256,9 @@ void CSVRender::TerrainTextureMode::editTerrainTextureGrid(const WorldspaceHitRe
     std::string mBrushTextureInt = mBrushTexture.substr (hashlocation+1);
     int brushInt = stoi(mBrushTexture.substr (hashlocation+1))+1; // All indices are offset by +1
 
-    float rf = mBrushSize/2;
-    int r = (mBrushSize/2)+1;
-    float distance = 0;
+    int rf = mBrushSize / 2;
+    int r = mBrushSize / 2 + 1;
+    int distance = 0;
 
     if (mBrushShape == 0)
     {
diff --git a/apps/opencs/view/world/cellcreator.cpp b/apps/opencs/view/world/cellcreator.cpp
index a42e7ead4e..16338a9a24 100644
--- a/apps/opencs/view/world/cellcreator.cpp
+++ b/apps/opencs/view/world/cellcreator.cpp
@@ -25,7 +25,7 @@ std::string CSVWorld::CellCreator::getId() const
 void CSVWorld::CellCreator::configureCreateCommand(CSMWorld::CreateCommand& command) const
 {
     CSMWorld::IdTree *model = dynamic_cast<CSMWorld::IdTree *>(getData().getTableModel(getCollectionId()));
-    Q_ASSERT(model != nullptr);
+    assert(model != nullptr);
     int parentIndex = model->findColumnIndex(CSMWorld::Columns::ColumnId_Cell);
     int index = model->findNestedColumnIndex(parentIndex, CSMWorld::Columns::ColumnId_Interior);
     command.addNestedValue(parentIndex, index, mType->currentIndex() == 0);
diff --git a/apps/opencs/view/world/dialoguesubview.cpp b/apps/opencs/view/world/dialoguesubview.cpp
index b32e2c7a14..0b04fe6c91 100644
--- a/apps/opencs/view/world/dialoguesubview.cpp
+++ b/apps/opencs/view/world/dialoguesubview.cpp
@@ -555,8 +555,10 @@ void CSVWorld::EditWidget::remake(int row)
             if (mTable->hasChildren(mTable->index(row, i)) &&
                     !(flags & CSMWorld::ColumnBase::Flag_Dialogue_List))
             {
-                mNestedModels.push_back(new CSMWorld::NestedTableProxyModel (
-                            mTable->index(row, i), display, dynamic_cast<CSMWorld::IdTree*>(mTable)));
+                CSMWorld::IdTree *innerTable = dynamic_cast<CSMWorld::IdTree*>(mTable);
+                assert(innerTable != nullptr);
+
+                mNestedModels.push_back(new CSMWorld::NestedTableProxyModel (mTable->index(row, i), display, innerTable));
 
                 int idColumn = mTable->findColumnIndex (CSMWorld::Columns::ColumnId_Id);
                 int typeColumn = mTable->findColumnIndex (CSMWorld::Columns::ColumnId_RecordType);
diff --git a/apps/opencs/view/world/scripthighlighter.cpp b/apps/opencs/view/world/scripthighlighter.cpp
index 6aba66053a..3fb82fad8f 100644
--- a/apps/opencs/view/world/scripthighlighter.cpp
+++ b/apps/opencs/view/world/scripthighlighter.cpp
@@ -81,8 +81,11 @@ void CSVWorld::ScriptHighlighter::highlight (const Compiler::TokenLoc& loc, Type
 
 CSVWorld::ScriptHighlighter::ScriptHighlighter (const CSMWorld::Data& data, Mode mode,
     QTextDocument *parent)
-: QSyntaxHighlighter (parent), Compiler::Parser (mErrorHandler, mContext), mContext (data),
-  mMode (mode)
+    : QSyntaxHighlighter (parent)
+    , Compiler::Parser (mErrorHandler, mContext)
+    , mContext (data)
+    , mMode (mode)
+    , mMarkOccurrences (false)
 {
     QColor color ("black");
     QTextCharFormat format;
diff --git a/apps/openmw/mwmechanics/aiwander.cpp b/apps/openmw/mwmechanics/aiwander.cpp
index 833a371272..129d1347bc 100644
--- a/apps/openmw/mwmechanics/aiwander.cpp
+++ b/apps/openmw/mwmechanics/aiwander.cpp
@@ -955,6 +955,7 @@ namespace MWMechanics
         , mStoredInitialActorPosition(wander->mStoredInitialActorPosition)
         , mHasDestination(false)
         , mDestination(osg::Vec3f(0, 0, 0))
+        , mUsePathgrid(false)
     {
         if (mStoredInitialActorPosition)
             mInitialActorPosition = wander->mInitialActorPosition;
diff --git a/apps/openmw/mwsound/ffmpeg_decoder.cpp b/apps/openmw/mwsound/ffmpeg_decoder.cpp
index 447c386c9c..d1c0dfee54 100644
--- a/apps/openmw/mwsound/ffmpeg_decoder.cpp
+++ b/apps/openmw/mwsound/ffmpeg_decoder.cpp
@@ -431,6 +431,7 @@ size_t FFmpeg_Decoder::getSampleOffset()
 FFmpeg_Decoder::FFmpeg_Decoder(const VFS::Manager* vfs)
   : Sound_Decoder(vfs)
   , mFormatCtx(nullptr)
+  , mCodecCtx(nullptr)
   , mStream(nullptr)
   , mFrame(nullptr)
   , mFrameSize(0)
diff --git a/components/detournavigator/makenavmesh.cpp b/components/detournavigator/makenavmesh.cpp
index 3ee7303864..26f86da321 100644
--- a/components/detournavigator/makenavmesh.cpp
+++ b/components/detournavigator/makenavmesh.cpp
@@ -129,6 +129,7 @@ namespace
         config.bmin[2] -= getBorderSize(settings);
         config.bmax[0] += getBorderSize(settings);
         config.bmax[2] += getBorderSize(settings);
+        config.tileSize = settings.mTileSize;
 
         return config;
     }