ID 500347 - More noise and/or artifacts appearing in 15.2v2.

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Problem summary
More noise and/or artifacts appearing in 15.2v2.

Customer reported version
modo.15.2v2

Customer reported platform
windows10

Steps to reproduce​

1) Download and open the attached scene file in Modo 15.2v2
2) Render the attached scene file.
3) Check the result, close Modo 15.2v2 and open an older version of Modo such as Modo 15.1v1.
4) Open the scene file in 15.1v1 and render the scene file.
5) Compare the two images, notice that 15.2v2 is producing a difference results with more noise and/or artifacts.

Expected behaviour
The render should produce the same or less noise.
Actual behaviour
Renders are producing more noise and/or artifacts.
Workaround
Unknown. If known please add steps to workaround or avoid the problem
Reproduced by support
This bug has been reproduced in:
15.2v2 - Windows 10 -regression

Unable to reproduce bug in:
15.2v1 - Windows 10

Earliest version tested 
15.2v1 - This issue doesn't appear in this version and has regressed

 

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