diff --git a/cura/CuraApplication.py b/cura/CuraApplication.py
index 679911bb0a..6297efb747 100644
--- a/cura/CuraApplication.py
+++ b/cura/CuraApplication.py
@@ -1031,4 +1031,68 @@ class CuraApplication(QtApplication):
     def log(self, msg):
         Logger.log("d", msg)
 
+    _loading_files = []
+    _non_sliceable_extensions = [".gcode", ".g"]
+
+    @pyqtSlot(QUrl)
+    def readLocalFile(self, file):
+        if not file.isValid():
+            return
+
+        scene = self.getController().getScene()
+
+        for node in DepthFirstIterator(scene.getRoot()):
+            if node.callDecoration("shouldBlockSlicing"):
+                self.deleteAll()
+                break
+
+        f = file.toLocalFile()
+        extension = os.path.splitext(f)[1]
+        filename = os.path.basename(f)
+        if len(self._loading_files) > 0:
+            # If a non-slicable file is already being loaded, we prevent loading of any further non-slicable files
+            if extension.lower() in self._non_sliceable_extensions:
+                message = Message(
+                    self._i18n_catalog.i18nc("@info:status",
+                                       "Only one G-code file can be loaded at a time. Skipped importing {0}",
+                                       filename))
+                message.show()
+                return
+            # If file being loaded is non-slicable file, then prevent loading of any other files
+            extension = os.path.splitext(self._loading_files[0])[1]
+            if extension.lower() in self._non_sliceable_extensions:
+                message = Message(
+                    self._i18n_catalog.i18nc("@info:status",
+                                       "Can't open any other file if G-code is loading. Skipped importing {0}",
+                                       filename))
+                message.show()
+                return
+
+        self._loading_files.append(f)
+        if extension in self._non_sliceable_extensions:
+            self.deleteAll()
+
+        job = ReadMeshJob(f)
+        job.finished.connect(self._readMeshFinished)
+        job.start()
+
+    def _readMeshFinished(self, job):
+        node = job.getResult()
+        filename = job.getFileName()
+        self._loading_files.remove(filename)
+
+        if node != None:
+            node.setSelectable(True)
+            node.setName(os.path.basename(filename))
+
+            extension = os.path.splitext(filename)[1]
+            if extension.lower() in self._non_sliceable_extensions:
+                self.changeLayerViewSignal.emit()
+
+            scene = self.getController().getScene()
+
+            op = AddSceneNodeOperation(node, scene.getRoot())
+            op.push()
+
+            scene.sceneChanged.emit(node)
 
diff --git a/plugins/CuraEngineBackend/CuraEngineBackend.py b/plugins/CuraEngineBackend/CuraEngineBackend.py
index db5e256d81..44009ae1de 100644
--- a/plugins/CuraEngineBackend/CuraEngineBackend.py
+++ b/plugins/CuraEngineBackend/CuraEngineBackend.py
@@ -191,7 +191,7 @@ class CuraEngineBackend(Backend):
     def pauseSlicing(self):
         self.close()
         self._pause_slicing = True
-        self.backendStateChange.emit(BackendState.SlicingDisabled)
+        self.backendStateChange.emit(BackendState.Disabled)
 
     def continueSlicing(self):
         if self._pause_slicing:
diff --git a/plugins/GCodeReader/GCodeReader.py b/plugins/GCodeReader/GCodeReader.py
index ef278a0019..e9aea36fae 100644
--- a/plugins/GCodeReader/GCodeReader.py
+++ b/plugins/GCodeReader/GCodeReader.py
@@ -223,7 +223,7 @@ class GCodeReader(MeshReader):
 
             for line in file:
                 if self._cancelled:
-                    Logger.log("i", "Parsing %s cancelled" % file_name)
+                    Logger.log("d", "Parsing %s cancelled" % file_name)
                     return None
                 current_line += 1
                 if current_line % file_step == 0:
diff --git a/resources/qml/Cura.qml b/resources/qml/Cura.qml
index 8eb3cf850e..1383338144 100644
--- a/resources/qml/Cura.qml
+++ b/resources/qml/Cura.qml
@@ -275,7 +275,7 @@ UM.MainWindow
                             // There is no endsWith in this version of JS...
                             if ((drop.urls[i].length <= 12) || (drop.urls[i].substring(drop.urls[i].length-12) !== ".curaprofile")) {
                                 // Drop an object
-                                UM.MeshFileHandler.readLocalFile(drop.urls[i]);
+                                Printer.readLocalFile(drop.urls[i]);
                                 if (imported_model == -1)
                                 {
                                     imported_model = i;
@@ -737,7 +737,7 @@ UM.MainWindow
 
             for(var i in fileUrls)
             {
-                UM.MeshFileHandler.readLocalFile(fileUrls[i])
+                Printer.readLocalFile(fileUrls[i])
             }
 
             var meshName = backgroundItem.getMeshName(fileUrls[0].toString())
diff --git a/resources/qml/Menus/RecentFilesMenu.qml b/resources/qml/Menus/RecentFilesMenu.qml
index c47fc5715b..866b06ccbb 100644
--- a/resources/qml/Menus/RecentFilesMenu.qml
+++ b/resources/qml/Menus/RecentFilesMenu.qml
@@ -26,7 +26,7 @@ Menu
                 return (index + 1) + ". " + path.slice(path.lastIndexOf("/") + 1);
             }
             onTriggered: {
-                UM.MeshFileHandler.readLocalFile(modelData);
+                Printer.readLocalFile(modelData);
                 var meshName = backgroundItem.getMeshName(modelData.toString())
                 backgroundItem.hasMesh(decodeURIComponent(meshName))
             }