ID 497322 - mPath dispersion affects nested mesh colour.

Problem summary
mPath dispersion affects nested mesh colour.

Customer reported version
modo.15.2v1

Customer reported platform
11_big_sur

Steps to reproduce

1) Launch Modo.

2) Load customer provided bundled scene.

3) Go to Render layout and allow preview render to fully load. 

4) Note that the preview render shows the desire render of the scene.

5) Go Shader Tree and select Dispersion + AB.

6) Press F10 to initiate Render.

7) Note that the color of the rendered contents within the bottle are off from preview.

Expected behaviour
Completed render should reflect color results from preview.

Actual behaviour
Color output is off from original.

For Additional visibility please review customer video: https://community.foundry.com/discuss/post/1229940/content/133426

Workaround
Unknown. 

Reproduced by support


This bug has been reproduced in:
15.2v1 - Mac OS X 10.14.6
15.1v2 - Mac OS X 10.14.6
15.1v1 - Mac OS X 10.14.6 - Regression



Unable to reproduce bug in:
15.0v1 - Mac OS X 10.14.6

Earliest version tested
15.0v1 - This issue doesn't appear in this version and has regressed