Hello everyone. My curtain wall rendered in opengl shows horizontal frames in greyed line wire frame. So not filled. I'd like to see all frames filled. Glass panels and vertical frames are rendered filled as anticipated from class fill settings. All frame types are set identically in the wall edit dialogue. This rendering issue applies to horizontal frames on horizontal grid lines and the top boundary and the bottom boundary frames.....But when I render in unshaded polygon, then the whole curtain wall renders perfectly. I must have missed a setting? Any similar experience?