Updating modules from Slicer-4.10 to Slicer-4.11

ah okay, that would explain it. What vtkMRMLModelNode method would I use to determine coordinate system?

In my custom layout, when defining the 3D view, am I missing any setting:

"     <item>"
"      <view class=\"vtkMRMLViewNode\" singletontag=\"1\">"
"       <property name=\"viewlabel\" action=\"default\">1</property>"
"      </view>"
"     </item>"