**System Information**
Win7 / x64
**Blender Version**
Broken: latest master
Worked: (optional)
**Short description of error**
Found while running the unit tests for the lib upgrades, but can reproduce with the latest buildbot build.
|file|win64|win32|Reference|
|tests\render\ctests\denoise\denoise_sss.blend| {F4383767} | {F4383768}|{F4383838}|
|tests\render\ctests\bsdf\principled_subsurface.blend | {F4383770} |{F4383769}|{F4383867}
**Exact steps for others to reproduce the error**
render file.