I'm using AC9. Occasionally I try editing an object's 2D parameters listed under "2D Representation" in the Parameters Panel and nothing happens. Currently I'm working on an object called Beam2_1 SE9. In the Parameters Panel, the Contour Pen and Material are listed above the "2D Representation" group, and the object responds to those parameters. However, under "2D Representation", there are fills and pens for the fills, none of which seem to have any affect on the object in either the floor plan or elevations. "Use Symbol Linetypes/Attributes", etc. are checked in the object's panels below the Parameter Panel.
Another odd pattern with this particular object is the section pen colors use the Section Panel's colors even when "Use Symbol Section Attributes" is checked.
Why can't I get the parameters listed under "2D Representation" (in this case, Fill Type, Fill Pen and Fill Background Pen) to work on this object (and on rare occasion, other objects)?
AC27 USA/Build 5030 16" MBP