ID 521482 - Differences in bump and displacement map renders between versions.

Problem summary
Differences in bump map renders between versions.
 
Customer reported version
modo.16.0v1
 
Customer reported platform
windows10
 
Steps to reproduce
 
1) Download and open the attached scene file.

2) Go to the Shader Tree and notice it has a bump map present with the Low Value set to 0% and the High Value set to 100%.

3) Render the scene and compare the output between versions.
 
Expected behavior
It should be consistent between versions.
 
Actual behavior
The bump map appears different in 15.2v3 and above.
 
Workaround
The Low Value and High Values of the bump map can potentially be adjusted to make it closer matches previous versions.
 
Reproduced by Support in:
This bug has been reproduced in:

16.1v7 - Windows 11, macOS 11.7 Big Sur

16.1v4 - Windows 11, macOS 11.6 Big Sur
16.0v1 - Windows 11, macOS 10.15 Catalina
15.2v3 - Windows 11, macOS 10.15 Catalina - regression
 
Unable to reproduce bug in:
15.2v2 - Windows 11, macOS 10.15 Catalina
 
Earliest version tested
15.2v2 - This issue doesn't appear in this version and has regressed.