Andrew

Hi Greenhorn, My problem has been solved by UK Tech VW The issue where the wall styles were not showing was to do with the detail level settings withing the document. To resolve this I went to File > Document Settings > Document Preferences > Display > turn off Auto display detail levels for design layers.

Wall styles appear to have no fill in wireframe mode. in 3D view Open GL is a mess all walls being clear. They appear fine in a view port or in Top. The same wall style is ok in other files. If I import another style; it is blank too.