Seems like you've somehow turned off silhouette edges.
File->Options->Appearance->Entity Display->Show silhouette edges
Or at least that's the only way I found to duplicate what you show in the isometric view.
Unfortunately, changing this doesn't seem to affect existing views, meaning I had to redefine the view to get it to "update".
in your cofing settings, turn on the option;
display_silhouette_edges YES
Seems like you've somehow turned off silhouette edges.
File->Options->Appearance->Entity Display->Show silhouette edges
Or at least that's the only way I found to duplicate what you show in the isometric view.
Unfortunately, changing this doesn't seem to affect existing views, meaning I had to redefine the view to get it to "update".
Hi
I found a solution to my problem.
This problem occurred after updating to Creo 10 from Creo 8. It seems we have some older drawings with an unusual setup.
What I did