Timers should only be started from the GUI thread.

diff --git a/Cura/gui/sceneView.py b/Cura/gui/sceneView.py
index e7d25bd93750f2b2ed5608151348f8cc442c7fee..82c11a5d28cab684028ff0f48aae2ab8d2ea5e57 100644 (file)
--- a/Cura/gui/sceneView.py
+++ b/Cura/gui/sceneView.py
@@ -543,7 +543,7 @@ class SceneView(openglGui.glGuiPanel):
                self.sceneUpdated()
 
        def sceneUpdated(self):
-               self._sceneUpdateTimer.Start(500, True)
+               wx.CallAfter(self._sceneUpdateTimer.Start, 500, True)
                self._engine.abortEngine()
                self._scene.updateSizeOffsets()
                self.QueueRefresh()