Monochrome view doing weird things

Hi All,
I am trying to draw up some boat plans for a mate of mine.
I have already created a 3D Rhino model from Laser Scan data and am now just detailing a refit of the interior.

I am using a slice plane in the Front View etc to create views.
The boat model, with a clipping plane down the centerline looks like this when shown in “Monochrome” .
This if from a standard windows screengrab.

If I use “View, Capture, To File” the result is this.

If I create a layout page, it looks like this

If I change “Monochrome” to “Pen” in the layout, it does this.

And yet the printed pdf looks like this

I just tried using the Section Tools and I get similar results,


What am I doing wrong ?
Thanks,
Mike.

Sysinfo looks like this…
Rhino 8 SR19 2025-4-30 (Rhino 8, 8.19.25120.01001, Git hash:master @ d5acc4497886d70951bcf732c57f14e7f860b15a)
License type: Commercial, build 2025-04-30
License details: Cloud Zoo

Windows 10 (10.0.19045 SR0.0) or greater (Physical RAM: 64GB)
.NET 7.0.20

Computer platform: DESKTOP

Standard graphics configuration.
Primary display and OpenGL: NVIDIA GeForce RTX 2060 (NVidia) Memory: 6GB, Driver date: 4-12-2025 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 576.02
> Accelerated graphics device with 4 adapter port(s)
- Windows Main Display attached to adapter port 0
- Secondary monitor attached to adapter port 1

OpenGL Settings
Safe mode: Off
Use accelerated hardware modes: On
GPU Tessellation is: On
Redraw scene when viewports are exposed: On
Graphics level being used: OpenGL 4.6 (primary GPU’s maximum)

Anti-alias mode: 4x
Mip Map Filtering: Linear
Anisotropic Filtering Mode: High

Vendor Name: NVIDIA Corporation
Render version: 4.6
Shading Language: 4.60 NVIDIA
Driver Date: 4-12-2025
Driver Version: 32.0.15.7602
Maximum Texture size: 32768 x 32768
Z-Buffer depth: 24 bits
Maximum Viewport size: 32768 x 32768
Total Video Memory: 6 GB

Rhino plugins that do not ship with Rhino
C:\Program Files\ADA 3D\Mesh2Surface for Rhino 6\m2s_for_Rhino.rhp “MESH2SURFACE”
C:\Program Files\Common Files\McNeel\Rhinoceros\7.0\Plug-ins\KeyShot10RhinoPlugin (ccedd9da-83b9-429a-aec5-8ec90b85fe67)\1.2.0.0\KeyShot10RhinoPlugin\Rhino 7\KeyShot10RhinoPlugin.rhp “KeyShot10RhinoPlugin” 1.2.0.0
C:\Program Files\Cyberstrak\R7\CS_ModelingPlugIn.rhp “Cyberstrak Modeling PlugIn”
C:\Program Files\Enscape\Enscape.Rhino.Plugin-net48\Enscape.Rhino8.Plugin.dll “Enscape.Rhino8.Plugin” 4.2.1.88
C:\Program Files\Veesus\Rhino\Rhino8\Veesus.rhp “Veesus Point Clouds for Rhino” 2024.5.9067.18427
C:\Program Files\Common Files\McNeel\Rhinoceros\8.0\Plug-ins\Bella (813de3fb-18eb-405f-bfcd-b0b4d3da91fb)\23.4.0.0\bella_rhino.rhp “Bella” 23.4.0.0
C:\Program Files\SimLab\Plugins\SimLab VR from Rhino\SimLabVRPlugin.rhp “SimLab VR for Rhino”
C:\ProgramData\Beam\App\RHINOBEAM.dll “MKS BEAM” 1.10.1.1
C:\Users\Mike\AppData\Roaming\McNeel\Rhinoceros\packages\7.0\RPC\0.0.13\RPC.rhp “RPC”

Rhino plugins that ship with Rhino
C:\Program Files\Rhino 8\Plug-ins\Commands.rhp “Commands” 8.19.25120.1001
C:\Program Files\Rhino 8\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 8\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 8.19.25120.1001
C:\Program Files\Rhino 8\Plug-ins\RhinoRender.rhp “Legacy Rhino Render”
C:\Program Files\Rhino 8\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 8.19.25120.1001
C:\Program Files\Rhino 8\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 8\Plug-ins\MeshCommands.rhp “MeshCommands” 8.19.25120.1001
C:\Program Files\Rhino 8\Plug-ins\RhinoCycles.rhp “RhinoCycles” 8.19.25120.1001
C:\Program Files\Rhino 8\Plug-ins\export_PDF.rhp “PDF Export” 8.19.25120.1001
C:\Program Files\Rhino 8\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 8.19.25120.1001
C:\Program Files\Rhino 8\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
C:\Program Files\Rhino 8\Plug-ins\Displacement.rhp “Displacement”
C:\Program Files\Rhino 8\Plug-ins\SectionTools.rhp “SectionTools”

I just tried opening the same file on my laptop…
This time I get the result that I was expecting, so I assume it is a graphics problem on my Desktop.

Related topic maybe?

Thanks Martin !