ID 485954 - Lit areas appear black when rendered with Anisotropy and Roughness applied to an Orthographic camera.

Problem summary
Lit areas appear black when rendered with Anisotropy and Roughness applied to an Orthographic camera.

Customer reported version
modo.15.1v1

Customer reported platform
windows10

Steps to reproduce
1) In Modo, open/create geometry.
2) Select the Camera item, then in Properties set the Projection Type to Orthographic.
3) In the Shading tab, select the Base material and set the Shading Model to Principled.
4) Set Roughness to 0%, then set Anisotropy to at least .01%.
5) Set the Anisotropy Map to the correct UV map for the object.
6) Render with F9 and observe the lit areas of the scene.

Expected behavior
The lighted areas should appear with the correct texture/material.

Actual behavior
The lighted areas are displaying black after rendering with the Orthographic camera while Anisotropy is applied with 0% Roughness.

Workaround
There is no available workaround a this time.

Reproduced by Support in:
Modo 15.1v1 - Windows 10, macOS 10.13.6
Modo 15.0v1 - Windows 10
Modo 14.2v1 - Windows 10
Modo 14.1v1 - Windows 10
Modo 14.0v1 - Windows 10
Modo 13.0v1 - Windows 10
Modo 12.2v2 - Windows 10, macOS 10.13.6

Earliest version tested
Modo 12.2v2 - This issue appears to be in all versions of the product