On close we have a "deselection" on the listbox, but the 3D preview is deleted then...

diff --git a/Cura/gui/projectPlanner.py b/Cura/gui/projectPlanner.py
index 14002802d1c2172ecc368d139c97736221b473bf..8f93a94bbb36466808458fc34b950183e44e225b 100644 (file)
--- a/Cura/gui/projectPlanner.py
+++ b/Cura/gui/projectPlanner.py
@@ -162,6 +162,8 @@ class projectPlanner(wx.Frame):
                self.preview.Refresh()\r
 \r
        def OnListSelect(self, e):\r
+               if self.listbox.GetSelection() == -1:\r
+                       return\r
                self.selection = self.list[self.listbox.GetSelection()]\r
                self.preview.Refresh()\r
 \r