Layout Box - Reference Display Objects not Showing / Plot Lines

[JKEdmo]

Good morning,

 

I've created a site plan with various tiny house units populating my site terrain model using the reference display (they are all separate PLAN files):

 

 

 I then created a site section and sent this section view to a layout sheet.

 

My problem -- the units do not show up in the section view.  The Camera View Option is set to Plot Lines.

 

 

However, when I set the Camera to Live View, the units show up:

 

 

I prefer Plot Lines.  Is Chief unable to generate any lines from Reference Display object?

 

Your insight appreciated.

 

Thanks,

 

Jim