When I run my cursor over the view port I get a transparent green rectangle covers the view port. Then I click within it and it turns orange and shows thin red lines.
I can't select actors.
Have a look to the properties menu: Name Vector Image
You select a 3D Vector image within the viewport, this you can see because this created red box = Bounding box.
change to the Collaboration menu and you will see this Image in the panel area.
Deactivate this actor or change the Opacity to 0.
Afterwards you will be able to select other actors.
The mistake was that I had Opened an .svg, not the .smg. That also explains why I wasn't seeing the saved view ports that I was sure were supposed to have been saved in the file.
main thing we have solved the problem
Retrieving data ...