Computing technical drawing data

Every time I open a model with my custom display mode, Rhino has to recalculate the display mode, some big models take up to 5 minutes!!
I save the file with the display showing fine but when I reopen it looks like it has lost the rendering meshes?
It didn’t use to happen before.
Other standard modes are take only seconds (shaded, rendered…)
Using Rhino 5
Any idea whay this is happening? Attached is my display mode.
_Rendered black edges.ini (44.6 KB)

Hi Juan -

The meshes for the technical display modes are not saved in the 3dm file and need to be recalculated when you open the model.
-wim