Issue:
Navisworks: When Opening Files produced in older versions. Plant 3D some silhouettes (Elbows, Curved Edges) do not show edges.
Causes:
Older version of the Navisworks files.
Solution:
Remove the existing Navisworks files and re-import the DWG files. The new file should show the edges as expected.
About the Author
Follow on Linkedin More Content by Jeff Arbogast