ID 525632 - Hard edges are not respected when there are 5 connecting edges in specific models.

Problem summary
In specific models hard edges are not respected when there are 5 connecting edges.
 
Customer reported version
Modo 16.0v3
 
Customer reported platform
Windows 11
 
Steps to reproduce
 
1. Launch Modo and open the attached scene file.
 
2. Set the 3D Viewport to Reflection.
 
3. Move the camera above the mesh.
 
4. Go to the Vertex Maps tab at the bottom right (If it's not there Right-click one of the tab panes and select Data Lists > Vertex Map Lists).
 
5. Under Other Maps select (new map).
 
6. Change the Vertex Map Type to Vertex Normal Map and select OK.
 
7. Click anywhere inside of the 3D viewport, press Shift + Tab to change it to Catmull-Clark, then press Shift + Tab again to change it back to Face mode.
 
Expected behaviour
The hard edges are respected and the normals are displayed correctly.
 
Actual behaviour
The hard edges are not respected and the normals are displayed incorrectly.
 
Workaround
Unknown. 
 
Reproduced by support
This bug has been reproduced in:
Modo 16.0v3 - Windows 10 - macOS 10.15 (Catalina)
Modo 14.0v1 - Windows 10 - macOS 10.15 (Catalina)
 
Earliest version tested
Modo 14.0v1 - This issue appears to be in all tested versions of the product.