diff --git a/ground/gcs/src/libs/osgearth/osgQtQuick/OSGModelNode.cpp b/ground/gcs/src/libs/osgearth/osgQtQuick/OSGModelNode.cpp
index 63907e37c..13c681f42 100644
--- a/ground/gcs/src/libs/osgearth/osgQtQuick/OSGModelNode.cpp
+++ b/ground/gcs/src/libs/osgearth/osgQtQuick/OSGModelNode.cpp
@@ -59,7 +59,7 @@ public:
 
 public:
 
-    Hidden(OSGModelNode *parent) : QObject(parent), self(parent), modelData(NULL), sceneData(NULL), offset(-1.0), clampToTerrain(false), dirty(false)
+    Hidden(OSGModelNode *parent) : QObject(parent), self(parent), modelData(NULL), sceneData(NULL), offset(-1.0), clampToTerrain(false), intoTerrain(false), dirty(false)
     {}
 
     ~Hidden()
diff --git a/ground/gcs/src/libs/osgearth/osgQtQuick/OSGViewport.cpp b/ground/gcs/src/libs/osgearth/osgQtQuick/OSGViewport.cpp
index 18a78ea2e..67508ac7a 100644
--- a/ground/gcs/src/libs/osgearth/osgQtQuick/OSGViewport.cpp
+++ b/ground/gcs/src/libs/osgearth/osgQtQuick/OSGViewport.cpp
@@ -91,8 +91,6 @@ public:
         updateMode(UpdateMode::Discrete),
         frameTimer(-1)
     {
-        qDebug() << "OSGViewport::Hidden";
-
         OsgEarth::initialize();
 
         createViewer();
@@ -102,9 +100,6 @@ public:
 
     ~Hidden()
     {
-        qDebug() << "OSGViewport::~Hidden";
-        // osgQtQuick::openGLContextInfo(QOpenGLContext::currentContext(), "OSGViewport::~Hidden");
-
         stop();
 
         destroyViewer();
@@ -127,6 +122,7 @@ public slots:
         }
         this->window = window;
     }
+
 public:
 
     bool acceptSceneData(OSGNode *node)
@@ -161,15 +157,17 @@ public:
             qWarning() << "OSGViewport::attach - invalid scene!";
             return false;
         }
-        if (!attach(view, sceneData->node())) {
-            qWarning() << "OSGViewport::attach - failed to attach node!";
-            return false;
-        }
+        // attach camera
         if (camera) {
             camera->attach(view);
         } else {
             qWarning() << "OSGViewport::attach - no camera!";
         }
+        // attach scene
+        if (!attach(view, sceneData->node())) {
+            qWarning() << "OSGViewport::attach - failed to attach node!";
+            return false;
+        }
         return true;
     }
 
@@ -198,6 +196,7 @@ public:
         }
 #endif
 
+        qDebug() << "OSGViewport::attach - set scene" << node;
         view->setSceneData(node);
 
         return true;
@@ -233,14 +232,14 @@ public:
     void initializeResources()
     {
         qDebug() << "OSGViewport::initializeResources";
-        if (!view.valid()) {
-            qDebug() << "OSGViewport::initializeResources - creating view";
-            view = createView();
-            self->attach(view.get());
-            viewer->addView(view);
-            start();
-            // osgDB::writeNodeFile(*(h->self->sceneData()->node()), "saved.osg");
+        if (view.valid()) {
+            qWarning() << "OSGViewport::initializeResources - view already created!";
+            return;
         }
+        view = createView();
+        self->attach(view.get());
+        viewer->addView(view);
+        start();
     }
 
     void releaseResources()
@@ -259,7 +258,6 @@ public:
 
     bool acceptUpdateMode(UpdateMode::Enum mode)
     {
-        // qDebug() << "OSGViewport::acceptUpdateMode" << mode;
         if (updateMode == mode) {
             return true;
         }
diff --git a/ground/gcs/src/libs/osgearth/osgearth.cpp b/ground/gcs/src/libs/osgearth/osgearth.cpp
index 73181fd30..cc1d7bb7b 100644
--- a/ground/gcs/src/libs/osgearth/osgearth.cpp
+++ b/ground/gcs/src/libs/osgearth/osgearth.cpp
@@ -72,6 +72,7 @@ void OsgEarth::registerQmlTypes()
     registered = true;
 
     // redirect osg logging to Qt (and export OSG_NOTIFY_LEVEL=DEBUG to enable osg logging)
+    // Note : enabling the notify handler seems to cause crashes (the notifier is probably not thread safe)
     // osg::setNotifyHandler(new QtNotifyHandler());
 
     // initialize();
@@ -106,11 +107,6 @@ void OsgEarth::initialize()
 
     initializeCache();
 
-    // force early initialization of osgEarth capabilities
-    // Doing this too early (before main window is displayed) causes rendering glitches (black holes)
-    // Not sure why... See OSGViewport for when it is called (late...)
-    // osgEarth::Registry::capabilities();
-
     displayInfo();
 }
 
@@ -151,7 +147,7 @@ void OsgEarth::initializeCache()
     } else {
         qWarning() << "OsgEarth::initializeCache - Failed to initialize cache";
     }
-#endif // ifdef USE_OSGEARTH
+#endif
 }
 
 void OsgEarth::displayInfo()
diff --git a/ground/gcs/src/libs/osgearth/qtwindowingsystem.cpp b/ground/gcs/src/libs/osgearth/qtwindowingsystem.cpp
index f25faa822..3ac9a0297 100644
--- a/ground/gcs/src/libs/osgearth/qtwindowingsystem.cpp
+++ b/ground/gcs/src/libs/osgearth/qtwindowingsystem.cpp
@@ -297,7 +297,6 @@ bool GraphicsWindowQt::makeCurrentImplementation()
         return false;
     }
     if (_owned && _glContext) {
-        // qDebug() << "GraphicsWindowQt::makeCurrentImplementation : " << _surface;
         if (!_glContext->makeCurrent(_surface)) {
             qWarning() << "GraphicsWindowQt::makeCurrentImplementation : failed to make context current";
             return false;