ID 387997 - Rounded edges can round incorrectly based on lighting/angle

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Problem summary
Rounded edges can round incorrectly based on lighting/angle. The same edges when lit fully or viewed from certain angles will round properly.

Customer reported version
modo.12.2v2

Customer reported platform
10.13

Steps to reproduce
1) Open Modo.
2) Select File > open and open the attached scene.
3) Press F9 to render the scene.
Result: The top and bottom edges will be beveled, but the left and right edges will not be. Rotating the camera to view the other side of the mesh (which is mirrored across the X axis) and rendering will show that all four edges are beveled.

Expected behaviour
Edges should consistently bevel despite the lighting/camera angle if visible.

Actual behaviour
Edge rounding can vary based on lighting and camera angle. 

Workaround
Unknown.

Reproduced by support
This bug has been reproduced in:
13.0v1 - Windows 10, OSX 10.13.5
12.2v2 - Windows 10 
12.1v2 - Windows 10
12.0v1 - Windows 10
11.2v3 - Windows 10
11.2v1 - Windows 10
11.1v1 - Windows 10
11.0v3 - Windows 10
10.2v4 - Windows 10, OSX 10.13.5

Earliest version tested
10.2v4 - Windows 10, OSX 10.13.5 - This issue appears to be in all versions of the product

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