This post is a warning to all Lumenrt users. There is a bug in the Microstation Connect 14 update in the exporting of files to Lumenrt 14
Objects, solids or surfaces, that have been symmetrized do not render correctly, apparently owing to a problem with surface normals. I have logged this and have been informed by Bentley that the problem has been identified and solved, but will not be available until update 15 in about six months....
Pending this, the only workaround I have found is to uninstall 14 then make a clean installation of 13
I hope this is of help to Lumenrt users