I see you posted during my reply.
The reason for this is that in Coarse mode it is just a symbolic representation of the shape so you could edit the Line Style in the Link if you you really need coarse model


Or just change the Detail Level for Structural Columns In that Link

Jay Colcombe
Autodesk Certified Instructor
Revit Architecture & Structure Certified Professional
AutoCAD Certified Professional
B.Sc. Hons Civil & Structural Engineering
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