Linetypes of Xref drawing misbehaving when plotting

[rfazio708529]

Good day all.

I have just upgraded to Civil 3D 2018 and am now having an issue I can not figure out.

I have a plan sheet in Paper space. Everything looks great but when I plot or preview the plot it is changing my lintypes of the surface contours to solid lines.

If i look at it in model space and paper space the lines are dashed.

This only happens when I go to plot the layout.

I have attached an image of the paper space view and a pdf showing the plot output.