diff --git a/cura/ConvexHullDecorator.py b/cura/ConvexHullDecorator.py
index b53737cc80..04a46ecaca 100644
--- a/cura/ConvexHullDecorator.py
+++ b/cura/ConvexHullDecorator.py
@@ -25,9 +25,9 @@ class ConvexHullDecorator(SceneNodeDecorator):
         self._convex_hull_job = None
 
         self._profile = None
-        Application.getInstance().getMachineManager().activeProfileChanged.connect(self._onActiveProfileChanged)
-        Application.getInstance().getMachineManager().activeMachineInstanceChanged.connect(self._onActiveMachineInstanceChanged)
-        self._onActiveProfileChanged()
+        #Application.getInstance().getMachineManager().activeProfileChanged.connect(self._onActiveProfileChanged)
+        #Application.getInstance().getMachineManager().activeMachineInstanceChanged.connect(self._onActiveMachineInstanceChanged)
+        #self._onActiveProfileChanged()
 
     ## Force that a new (empty) object is created upon copy.
     def __deepcopy__(self, memo):
diff --git a/cura/ConvexHullJob.py b/cura/ConvexHullJob.py
index 9fb18981d3..7e814af7d7 100644
--- a/cura/ConvexHullJob.py
+++ b/cura/ConvexHullJob.py
@@ -59,12 +59,12 @@ class ConvexHullJob(Job):
         # This is done because of rounding errors.
         hull = hull.getMinkowskiHull(Polygon(numpy.array([[-0.5, -0.5], [-0.5, 0.5], [0.5, 0.5], [0.5, -0.5]], numpy.float32)))
 
-        profile = Application.getInstance().getMachineManager().getWorkingProfile()
-        if profile:
-            if profile.getSettingValue("print_sequence") == "one_at_a_time" and not self._node.getParent().callDecoration("isGroup"):
+        global_stack = Application.getInstance().getGlobalContainerStack()
+        if global_stack:
+            if global_stack.getProperty("print_sequence", "value")== "one_at_a_time" and not self._node.getParent().callDecoration("isGroup"):
                 # Printing one at a time and it's not an object in a group
                 self._node.callDecoration("setConvexHullBoundary", copy.deepcopy(hull))
-                head_and_fans = Polygon(numpy.array(profile.getSettingValue("machine_head_with_fans_polygon"), numpy.float32))
+                head_and_fans = Polygon(numpy.array(global_stack.getProperty("machine_head_with_fans_polygon", "value"), numpy.float32))
 
                 # Full head hull is used to actually check the order.
                 full_head_hull = hull.getMinkowskiHull(head_and_fans)
@@ -77,7 +77,7 @@ class ConvexHullJob(Job):
                 # Min head hull is used for the push free
                 min_head_hull = hull.getMinkowskiHull(head_and_fans)
                 self._node.callDecoration("setConvexHullHead", min_head_hull)
-                hull = hull.getMinkowskiHull(Polygon(numpy.array(profile.getSettingValue("machine_head_polygon"),numpy.float32)))
+                hull = hull.getMinkowskiHull(Polygon(numpy.array(global_stack.getProperty("machine_head_polygon","value"),numpy.float32)))
             else:
                 self._node.callDecoration("setConvexHullHead", None)
         if self._node.getParent() is None:  # Node was already deleted before job is done.
diff --git a/plugins/CuraEngineBackend/CuraEngineBackend.py b/plugins/CuraEngineBackend/CuraEngineBackend.py
index 5102427823..a57aa01ba9 100644
--- a/plugins/CuraEngineBackend/CuraEngineBackend.py
+++ b/plugins/CuraEngineBackend/CuraEngineBackend.py
@@ -134,14 +134,15 @@ class CuraEngineBackend(Backend):
             self._process_layers_job.abort()
             self._process_layers_job = None
 
-        if self._profile.hasErrorValue():
-            Logger.log("w", "Profile has error values. Aborting slicing")
-            if self._message:
-                self._message.hide()
-                self._message = None
-            self._message = Message(catalog.i18nc("@info:status", "Unable to slice. Please check your setting values for errors."))
-            self._message.show()
-            return #No slicing if we have error values since those are by definition illegal values.
+        #TODO: Re-add don't slice with error stuff.
+        #if self._profile.hasErrorValue():
+        #    Logger.log("w", "Profile has error values. Aborting slicing")
+        #    if self._message:
+        #        self._message.hide()
+        #        self._message = None
+        #    self._message = Message(catalog.i18nc("@info:status", "Unable to slice. Please check your setting values for errors."))
+        #    self._message.show()
+        #    return #No slicing if we have error values since those are by definition illegal values.
 
         self.processingProgress.emit(0.0)
         self.backendStateChange.emit(BackendState.NOT_STARTED)
@@ -265,9 +266,6 @@ class CuraEngineBackend(Backend):
         self._change_timer.start()
 
     def _onChanged(self):
-        if not self._profile:
-            return
-
         self._change_timer.start()
 
     def _onBackendConnected(self):