Sub surface texture display bug

Something has change or is going wrong…

The underwater part of this boat transom should appears in black whithout the " metal" texture below.
All my driver are up to date, and it was working great before.
test1.3dm (1.9 MB)

Rhino 6 SR14 2019-4-23 (Rhino 6, 6.14.19113.21441, Git hash:master @ 7e638aa5785c689278f5f0e166fd3a82dcc50fbd)
License type: Commerciale, version 2019-04-23
License details: Cloud Zoo. In use by:

Windows 10.0 SR0.0 or greater (Physical RAM: 32Gb)
Machine name:

Non-hybrid graphics.
Primary display and OpenGL: NVIDIA GeForce GTX 970 (NVidia) Memory: 4GB, Driver date: 4-17-2019 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 430.39

OpenGL Settings
Safe mode: Off
Use accelerated hardware modes: On
Redraw scene when viewports are exposed: On

Anti-alias mode: 8x
Mip Map Filtering: Linear
Anisotropic Filtering Mode: Height

Vendor Name: NVIDIA Corporation
Render version: 4.6
Shading Language: 4.60 NVIDIA
Driver Date: 4-17-2019
Driver Version:
Maximum Texture size: 16384 x 16384
Z-Buffer depth: 24 bits
Maximum Viewport size: 16384 x 16384
Total Video Memory: 4 GB

Rhino plugins
F:\Rhino 6\Plug-ins\Commands.rhp “Commands” 6.14.19113.21441
F:\Rhino 6\Plug-ins\rdk.rhp “Renderer Development Kit”
F:\Rhino 6\Plug-ins\RPC.rhp “RPC”
F:\Rhino 6\Plug-ins\AnimationTools.rhp “AnimationTools”
C:\Users\AppData\Roaming\Grasshopper\Libraries\ElefrontProperties.rhp “ElefrontProperties”
F:\Rhino 6\Plug-ins\RhinoRender.rhp “Rhino Render”
F:\Rhino 6\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 6.14.19113.21441
F:\Rhino 6\Plug-ins\rdk_ui.rhp “Renderer Development Kit UI”
F:\Rhino 6\Plug-ins\NamedSnapshots.rhp “Snapshots”
F:\Rhino 6\Plug-ins\RhinoCycles.rhp “RhinoCycles” 6.14.19113.21441
F:\Programmes\SIMLAB\plugins\SimLabPDFExporter.rhp “SimLab PDF Exporter”
F:\Rhino 6\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 6.14.19113.21441
F:\Rhino 6\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
C:\Program Files\Chaos Group\V-Ray\V-Ray for Rhinoceros\V6\VRayForRhino.rhp “V-Ray for Rhino”
F:\Rhino 6\Plug-ins\Displacement.rhp “Displacement”
C:\Users\AppData\Roaming\McNeel\Rhinoceros\6.0\Plug-ins\SectionTools (fbdb1d7f-8cfb-42c1-9858-87cb6315932c)\2019.2.19.478\SectionTools.rhp “SectionTools”
F:\Rhino 6\Plug-ins\NamedPositions.rhp “Named Position”

Thanks, I see it too. Note that Raytraced shows correctly.

I created for your report.