diff --git a/Source/Fractorium/FinalRenderDialog.cpp b/Source/Fractorium/FinalRenderDialog.cpp
index a08a4c0..bb58405 100644
--- a/Source/Fractorium/FinalRenderDialog.cpp
+++ b/Source/Fractorium/FinalRenderDialog.cpp
@@ -667,7 +667,11 @@ bool FractoriumFinalRenderDialog::CreateControllerFromGUI(bool createRenderer)
 		//First check if a controller has already been created, and if so, save its embers and gracefully shut it down.
 		if (m_Controller.get())
 		{
-			m_Controller->CopyEmberFile(efd);//Convert float to double or save double verbatim;
+#ifdef DO_DOUBLE
+			m_Controller->CopyEmberFile(efd, [&](Ember<double>& ember) { });//Convert float to double or save double verbatim;
+#else
+			m_Controller->CopyEmberFile(efd, [&](Ember<float>& ember) { });//Convert float to double or save double verbatim;
+#endif
 			m_Controller->Shutdown();
 		}
 
diff --git a/Source/Fractorium/FinalRenderEmberController.h b/Source/Fractorium/FinalRenderEmberController.h
index 67e2ea6..b411c05 100644
--- a/Source/Fractorium/FinalRenderEmberController.h
+++ b/Source/Fractorium/FinalRenderEmberController.h
@@ -105,10 +105,10 @@ public:
 
 	//Virtual functions overridden from FractoriumEmberControllerBase.
 	virtual void SetEmberFile(const EmberFile<float>& emberFile) override;
-	virtual void CopyEmberFile(EmberFile<float>& emberFile, std::function<void(Ember<float>& ember)> perEmberOperation = [&](Ember<float>& ember) { }) override;
+	virtual void CopyEmberFile(EmberFile<float>& emberFile, std::function<void(Ember<float>& ember)> perEmberOperation/* = [&](Ember<float>& ember) { }*/) override;
 #ifdef DO_DOUBLE
 	virtual void SetEmberFile(const EmberFile<double>& emberFile) override;
-	virtual void CopyEmberFile(EmberFile<double>& emberFile, std::function<void(Ember<double>& ember)> perEmberOperation = [&](Ember<double>& ember) { }) override;
+	virtual void CopyEmberFile(EmberFile<double>& emberFile, std::function<void(Ember<double>& ember)> perEmberOperation/* = [&](Ember<double>& ember) { }*/) override;
 #endif
 	virtual void SetEmber(size_t index) override;
 	virtual bool Render() override;
diff --git a/Source/Fractorium/FractoriumEmberController.h b/Source/Fractorium/FractoriumEmberController.h
index bcdd22c..f0c25bd 100644
--- a/Source/Fractorium/FractoriumEmberController.h
+++ b/Source/Fractorium/FractoriumEmberController.h
@@ -41,16 +41,16 @@ public:
 
 	//Embers.
 	virtual void SetEmber(const Ember<float>& ember, bool verbatim = false) { }
-	virtual void CopyEmber(Ember<float>& ember, std::function<void(Ember<float>& ember)> perEmberOperation = [&](Ember<float>& ember) { }) { }
+	virtual void CopyEmber(Ember<float>& ember, std::function<void(Ember<float>& ember)> perEmberOperation/* = [&](Ember<float>& ember) { }*/) { }
 	virtual void SetEmberFile(const EmberFile<float>& emberFile) { }
-	virtual void CopyEmberFile(EmberFile<float>& emberFile, std::function<void(Ember<float>& ember)> perEmberOperation = [&](Ember<float>& ember) { }) { }
+	virtual void CopyEmberFile(EmberFile<float>& emberFile, std::function<void(Ember<float>& ember)> perEmberOperation/* = [&](Ember<float>& ember) { }*/) { }
 	virtual void SetTempPalette(const Palette<float>& palette) { }
 	virtual void CopyTempPalette(Palette<float>& palette) { }
 #ifdef DO_DOUBLE
 	virtual void SetEmber(const Ember<double>& ember, bool verbatim = false) { }
-	virtual void CopyEmber(Ember<double>& ember, std::function<void(Ember<double>& ember)> perEmberOperation = [&](Ember<double>& ember) { }) { }
+	virtual void CopyEmber(Ember<double>& ember, std::function<void(Ember<double>& ember)> perEmberOperation/* = [&](Ember<double>& ember) { }*/) { }
 	virtual void SetEmberFile(const EmberFile<double>& emberFile) { }
-	virtual void CopyEmberFile(EmberFile<double>& emberFile, std::function<void(Ember<double>& ember)> perEmberOperation = [&](Ember<double>& ember) { }) { }
+	virtual void CopyEmberFile(EmberFile<double>& emberFile, std::function<void(Ember<double>& ember)> perEmberOperation/* = [&](Ember<double>& ember) { }*/) { }
 	virtual void SetTempPalette(const Palette<double>& palette) { }
 	virtual void CopyTempPalette(Palette<double>& palette) { }
 #endif
@@ -254,16 +254,16 @@ public:
 
 	//Embers.
 	virtual void SetEmber(const Ember<float>& ember, bool verbatim = false) override;
-	virtual void CopyEmber(Ember<float>& ember, std::function<void(Ember<float>& ember)> perEmberOperation = [&](Ember<float>& ember) { }) override;
+	virtual void CopyEmber(Ember<float>& ember, std::function<void(Ember<float>& ember)> perEmberOperation/* = [&](Ember<float>& ember) { }*/) override;
 	virtual void SetEmberFile(const EmberFile<float>& emberFile) override;
-	virtual void CopyEmberFile(EmberFile<float>& emberFile, std::function<void(Ember<float>& ember)> perEmberOperation = [&](Ember<float>& ember) { }) override;
+	virtual void CopyEmberFile(EmberFile<float>& emberFile, std::function<void(Ember<float>& ember)> perEmberOperation/* = [&](Ember<float>& ember) { }*/) override;
 	virtual void SetTempPalette(const Palette<float>& palette) override;
 	virtual void CopyTempPalette(Palette<float>& palette) override;
 #ifdef DO_DOUBLE
 	virtual void SetEmber(const Ember<double>& ember, bool verbatim = false) override;
-	virtual void CopyEmber(Ember<double>& ember, std::function<void(Ember<double>& ember)> perEmberOperation = [&](Ember<double>& ember) { }) override;
+	virtual void CopyEmber(Ember<double>& ember, std::function<void(Ember<double>& ember)> perEmberOperation/* = [&](Ember<double>& ember) { }*/) override;
 	virtual void SetEmberFile(const EmberFile<double>& emberFile) override;
-	virtual void CopyEmberFile(EmberFile<double>& emberFile, std::function<void(Ember<double>& ember)> perEmberOperation = [&](Ember<double>& ember) { }) override;
+	virtual void CopyEmberFile(EmberFile<double>& emberFile, std::function<void(Ember<double>& ember)> perEmberOperation/* = [&](Ember<double>& ember) { }*/) override;
 	virtual void SetTempPalette(const Palette<double>& palette) override;
 	virtual void CopyTempPalette(Palette<double>& palette) override;
 #endif
diff --git a/Source/Fractorium/FractoriumRender.cpp b/Source/Fractorium/FractoriumRender.cpp
index 5357d70..726d667 100644
--- a/Source/Fractorium/FractoriumRender.cpp
+++ b/Source/Fractorium/FractoriumRender.cpp
@@ -642,8 +642,13 @@ bool Fractorium::CreateControllerFromOptions()
 		if (m_Controller.get())
 		{
 			m_Controller->CopyTempPalette(tempPalette);//Convert float to double or save double verbatim;
-			m_Controller->CopyEmber(ed);
-			m_Controller->CopyEmberFile(efd);
+#ifdef DO_DOUBLE
+			m_Controller->CopyEmber(ed, [&](Ember<double>& ember) { });
+			m_Controller->CopyEmberFile(efd, [&](Ember<double>& ember) { });
+#else
+			m_Controller->CopyEmber(ed, [&](Ember<float>& ember) { });
+			m_Controller->CopyEmberFile(efd, [&](Ember<float>& ember) { });
+#endif
 			m_Controller->Shutdown();
 		}