diff --git a/rtengine/LUT.h b/rtengine/LUT.h
index df95dde7f..2701c4ffc 100644
--- a/rtengine/LUT.h
+++ b/rtengine/LUT.h
@@ -169,6 +169,11 @@ public:
     {
         data = nullptr;
         reset();
+#if defined( __SSE2__ ) && defined( __x86_64__ )
+        maxsv = ZEROV;
+        sizev = ZEROV;
+        sizeiv = _mm_setzero_si128();
+#endif
     }
 
     ~LUT()
diff --git a/rtengine/coord2d.h b/rtengine/coord2d.h
index f896cd0d0..bc030f22e 100644
--- a/rtengine/coord2d.h
+++ b/rtengine/coord2d.h
@@ -28,7 +28,7 @@ class Coord2D
 public:
     double x, y;
     Coord2D (double x_, double y_) : x(x_), y(y_) {}
-    Coord2D () {}
+    Coord2D () : x(0), y(0) {}
     void set (double x_, double y_)
     {
         x = x_;
diff --git a/rtengine/dcp.cc b/rtengine/dcp.cc
index 62765f812..43aa98480 100644
--- a/rtengine/dcp.cc
+++ b/rtengine/dcp.cc
@@ -407,6 +407,7 @@ DCPProfile::DCPProfile(const Glib::ustring& filename) :
     valid(false),
     baseline_exposure_offset(0.0)
 {
+    delta_info.hue_step = delta_info.val_step = look_info.hue_step = look_info.val_step = 0;
     constexpr int tiff_float_size = 4;
 
     enum class TagKey : int {
diff --git a/rtengine/dfmanager.cc b/rtengine/dfmanager.cc
index c71d7f98b..bc35b3c71 100644
--- a/rtengine/dfmanager.cc
+++ b/rtengine/dfmanager.cc
@@ -211,9 +211,12 @@ void dfInfo::updateRawImage()
 
 void dfInfo::updateBadPixelList( RawImage *df )
 {
+    if(!df) {
+        return;
+    }
     const float threshold = 10.f / 8.f;
 
-    if( ri->getSensorType() == ST_BAYER || ri->getSensorType() == ST_FUJI_XTRANS ) {
+    if( df->getSensorType() == ST_BAYER || df->getSensorType() == ST_FUJI_XTRANS ) {
         std::vector<badPix> badPixelsTemp;
 
         #pragma omp parallel
diff --git a/rtengine/iccstore.cc b/rtengine/iccstore.cc
index 8ea663750..4e206e3bb 100644
--- a/rtengine/iccstore.cc
+++ b/rtengine/iccstore.cc
@@ -216,15 +216,19 @@ rtengine::ProfileContent::ProfileContent(const Glib::ustring& fileName)
     }
 
     fseek(f, 0, SEEK_END);
-    const long length = ftell(f);
-    fseek(f, 0, SEEK_SET);
-    char* d = new char[length + 1];
-    fread(d, length, 1, f);
-    d[length] = 0;
+    long length = ftell(f);
+    if(length > 0) {
+        char* d = new char[length + 1];
+        fseek(f, 0, SEEK_SET);
+        length = fread(d, length, 1, f);
+        d[length] = 0;
+        data.assign(d, length);
+        delete[] d;
+    } else {
+        data.clear();
+    }
     fclose(f);
 
-    data.assign(d, length);
-    delete[] d;
 }
 
 rtengine::ProfileContent::ProfileContent(cmsHPROFILE hProfile)
diff --git a/rtengine/improcfun.cc b/rtengine/improcfun.cc
index 95c3848ba..fcbde90e4 100644
--- a/rtengine/improcfun.cc
+++ b/rtengine/improcfun.cc
@@ -5471,7 +5471,6 @@ SSEFUNCTION void ImProcFunctions::chromiLuminanceCurve (PipetteBuffer *pipetteBu
         editID = pipetteBuffer->getEditID();
 
         if (editID != EUID_None) {
-            editPipette = true;
 
             switch  (pipetteBuffer->getDataProvider()->getCurrSubscriber()->getPipetteBufferType()) {
                 case (BT_IMAGEFLOAT):
@@ -5481,6 +5480,7 @@ SSEFUNCTION void ImProcFunctions::chromiLuminanceCurve (PipetteBuffer *pipetteBu
                     break;
 
                 case (BT_SINGLEPLANE_FLOAT):
+                    editPipette = true;
                     editWhatever = pipetteBuffer->getSinglePlaneBuffer();
                     break;
             }
diff --git a/rtgui/coarsepanel.cc b/rtgui/coarsepanel.cc
index 63a9251fb..a201b1f7f 100644
--- a/rtgui/coarsepanel.cc
+++ b/rtgui/coarsepanel.cc
@@ -22,7 +22,7 @@
 using namespace rtengine;
 using namespace rtengine::procparams;
 
-CoarsePanel::CoarsePanel () : ToolPanel ()
+CoarsePanel::CoarsePanel () : ToolPanel (), oldhflip(false), oldvflip(false)
 {
 
     degree = 0;
diff --git a/rtgui/exportpanel.h b/rtgui/exportpanel.h
index db4431ca5..be6c9b4e3 100644
--- a/rtgui/exportpanel.h
+++ b/rtgui/exportpanel.h
@@ -76,8 +76,6 @@ protected:
     MyComboBoxText* raw_xtrans_method;
 
     Gtk::Button* btnFastExport;
-    Gtk::Button* btnExportLoadSettings;
-    Gtk::Button* btnExportSaveSettings;
 
     MySpinButton* MaxWidth;
     MySpinButton* MaxHeight;
diff --git a/rtgui/filebrowser.cc b/rtgui/filebrowser.cc
index b4238f011..c026b63a8 100644
--- a/rtgui/filebrowser.cc
+++ b/rtgui/filebrowser.cc
@@ -125,8 +125,21 @@ void findOriginalEntries (const std::vector<ThumbBrowserEntryBase*>& entries)
 
 }
 
-FileBrowser::FileBrowser ()
-    : tbl(nullptr), numFiltered(0)
+FileBrowser::FileBrowser () :
+    menuLabel(nullptr),
+    selectDF(nullptr),
+    thisIsDF(nullptr),
+    autoDF(nullptr),
+    selectFF(nullptr),
+    thisIsFF(nullptr),
+    autoFF(nullptr),
+    clearFromCache(nullptr),
+    clearFromCacheFull(nullptr),
+    colorLabel_actionData(nullptr),
+    bppcl(nullptr),
+    tbl(nullptr),
+    numFiltered(0),
+    exportPanel(nullptr)
 {
     session_id_ = 0;
 
diff --git a/rtgui/filebrowserentry.cc b/rtgui/filebrowserentry.cc
index ceab1c1d3..59655235f 100644
--- a/rtgui/filebrowserentry.cc
+++ b/rtgui/filebrowserentry.cc
@@ -38,7 +38,7 @@ Glib::RefPtr<Gdk::Pixbuf> FileBrowserEntry::recentlySavedIcon;
 Glib::RefPtr<Gdk::Pixbuf> FileBrowserEntry::enqueuedIcon;
 
 FileBrowserEntry::FileBrowserEntry (Thumbnail* thm, const Glib::ustring& fname)
-    : ThumbBrowserEntryBase (fname), wasInside(false), iatlistener(nullptr), cropgl(nullptr), state(SNormal), crop_custom_ratio(0.f)
+    : ThumbBrowserEntryBase (fname), wasInside(false), iatlistener(nullptr), press_x(0), press_y(0), action_x(0), action_y(0), rot_deg(0.0), landscape(true), cropgl(nullptr), state(SNormal), crop_custom_ratio(0.f)
 {
     thumbnail = thm;
 
diff --git a/rtgui/filecatalog.cc b/rtgui/filecatalog.cc
index 710450d90..0d10ba125 100644
--- a/rtgui/filecatalog.cc
+++ b/rtgui/filecatalog.cc
@@ -44,12 +44,16 @@ using namespace std;
 FileCatalog::FileCatalog (CoarsePanel* cp, ToolBar* tb, FilePanel* filepanel) :
     filepanel(filepanel),
     selectedDirectoryId(1),
+    actionNextPrevious(NAV_NONE),
     listener(nullptr),
     fslistener(nullptr),
+    iatlistener(nullptr),
     hasValidCurrentEFS(false),
     filterPanel(nullptr),
+    exportPanel(nullptr),
     previewsToLoad(0),
     previewsLoaded(0),
+    modifierKey(0),
     coarsePanel(cp),
     toolBar(tb)
 {
diff --git a/rtgui/lensgeom.cc b/rtgui/lensgeom.cc
index fc1b0a1bd..7cae75d87 100644
--- a/rtgui/lensgeom.cc
+++ b/rtgui/lensgeom.cc
@@ -23,7 +23,7 @@
 using namespace rtengine;
 using namespace rtengine::procparams;
 
-LensGeometry::LensGeometry () : FoldableToolPanel(this, "lensgeom", M("TP_LENSGEOM_LABEL")), rlistener(nullptr)
+LensGeometry::LensGeometry () : FoldableToolPanel(this, "lensgeom", M("TP_LENSGEOM_LABEL")), rlistener(nullptr), lastFill(false)
 {
 
     fill = Gtk::manage (new Gtk::CheckButton (M("TP_LENSGEOM_FILL")));
diff --git a/rtgui/lensprofile.cc b/rtgui/lensprofile.cc
index 79a0dc19f..0855ef03f 100644
--- a/rtgui/lensprofile.cc
+++ b/rtgui/lensprofile.cc
@@ -26,7 +26,7 @@
 using namespace rtengine;
 using namespace rtengine::procparams;
 
-LensProfilePanel::LensProfilePanel () : FoldableToolPanel(this, "lensprof", M("TP_LENSPROFILE_LABEL")), isRaw(true)
+LensProfilePanel::LensProfilePanel () : FoldableToolPanel(this, "lensprof", M("TP_LENSPROFILE_LABEL")), lcpFileChanged(false), useDistChanged(false), useVignChanged(false), useCAChanged(false), isRaw(true), lensgeomLcpFill(nullptr)
 {
     hbLCPFile = Gtk::manage(new Gtk::HBox());
 
diff --git a/rtgui/main.cc b/rtgui/main.cc
index 0f4a96c8a..531c42291 100644
--- a/rtgui/main.cc
+++ b/rtgui/main.cc
@@ -415,7 +415,6 @@ void deleteProcParams(std::vector<rtengine::procparams::PartialProfile*> &pparam
 
 int processLineParams( int argc, char **argv )
 {
-    unsigned errors = 0;
 
     for( int iArg = 1; iArg < argc; iArg++) {
         Glib::ustring currParam(argv[iArg]);
@@ -472,5 +471,5 @@ int processLineParams( int argc, char **argv )
         return 1;
     }
 
-    return errors > 0 ? -2 : 0;
+    return 0;
 }
diff --git a/rtgui/myflatcurve.cc b/rtgui/myflatcurve.cc
index 210fb42f2..4da683b0c 100644
--- a/rtgui/myflatcurve.cc
+++ b/rtgui/myflatcurve.cc
@@ -21,7 +21,25 @@
 #include <cstring>
 #include <gdkmm/types.h>
 
-MyFlatCurve::MyFlatCurve ()
+MyFlatCurve::MyFlatCurve () :
+    clampedX(0.0),
+    clampedY(0.0),
+    deltaX(0.0),
+    deltaY(0.0),
+    distanceX(0.0),
+    distanceY(0.0),
+    ugpX(0.0),
+    ugpY(0.0),
+    leftTanX(0.0),
+    rightTanX(0.0),
+    preciseCursorX(0.0),
+    preciseCursorY(0.0),
+    minDistanceX(0.0),
+    minDistanceY(0.0),
+    deletedPointX(0.0),
+    leftTanHandle({0.0, 0.0}),
+    rightTanHandle({0.0, 0.0}),
+    draggingElement(false)
 {
 
     graphW = get_allocation().get_width() - RADIUS * 2;