Rhino 8 randomly undoes all my settings every few days

Dear Rhino community,

Something strange and frustrating has been happening. Every so often, my Rhino 8 will lose all my custom settings: appearances, aliases, keyboard, mouse, custom display modes will all be reset. It will happen in the middle of work sessions, switching between applications, and generally in subtle moments without my understanding why. I thought it was when I would open DWG’s in Rhino 8 or when I would open Rhino 7 files from colleagues that would trigger the re-set but this doesn’t seem to be the cause. It just happened again and I am at a loss. I wonder if anyone has any insight.

The only hint is that each time it resets, I am left with three Shaded views in my Display Modes menu (see screenshot). Some of my custom display modes are copies of the default Shaded view so I don’t know if that might have something to do with it.

Any insight is appreciated. I tried the method of having my settings copied in the AppData/Roaming/… /settings also without success.


Hi Lucas -

I’m not sure what that method is exactly but you can OptionsExport to get most things saved to a text file and OptionsImport to get them back if things go South. But next time this happens, please use Reset and click the button to save the settings for support - send the zip file to tech@mcneel.com with a link back to this topic in your comments.

Meantime, plase run SystemInfo in Rhino and copy/paste the results here.


1 Like

Thank you, Pascal
OptionsExport and OptionsImport will already help a great deal. Didn’t know about that. Previously I was following the method outlined in this post: Rhino settings backup in RH8

SystemInfo results:

Rhino 8 SR4 2024-2-13 (Rhino 8, 8.4.24044.15001, Git hash:master @ 5d3f86ffffae3c2ed84d21147c008b3907a40a2e)
License type: Commercial, build 2024-02-13
License details: Cloud Zoo

Windows 11 (10.0.22621 SR0.0) or greater (Physical RAM: 32GB)
.NET 7.0.16

Computer platform: LAPTOP - Plugged in [100% battery remaining]

Non-hybrid graphics configuration.
Primary display and OpenGL: NVIDIA T1200 Laptop GPU (NVidia) Memory: 4GB, Driver date: 10-13-2023 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 529.19
> Integrated accelerated graphics device with 4 adapter port(s)
- Windows Main Display is laptop’s integrated screen or built-in port
Primary OpenGL: NVIDIA T1200 Laptop GPU (NVidia) Memory: 4GB, Driver date: 10-13-2023 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 529.19
> Integrated accelerated graphics device with 4 adapter port(s)
- Windows Main Display is laptop’s integrated screen or built-in port

Secondary graphics devices.
Intel(R) UHD Graphics (Intel) Memory: 1GB, Driver date: 7-11-2023 (M-D-Y).
> Integrated graphics device with 4 adapter port(s)
- There are no monitors attached to this device. Laptop lid is probably closed

OpenGL Settings
Safe mode: Off
Use accelerated hardware modes: 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: 10-13-2023
Driver Version:
Maximum Texture size: 32768 x 32768
Z-Buffer depth: 24 bits
Maximum Viewport size: 32768 x 32768
Total Video Memory: 4 GB

Rhino plugins that do not ship with Rhino
C:\Program Files\Chaos Group\V-Ray\V-Ray for Rhinoceros\V8\VRayForRhino.rhp “V-Ray for Rhino”

Rhino plugins that ship with Rhino
C:\Program Files\Rhino 8\Plug-ins\Commands.rhp “Commands” 8.4.24044.15001
C:\Program Files\Rhino 8\Plug-ins\WebBrowser.rhp “WebBrowser”
C:\Program Files\Rhino 8\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 8\Plug-ins\RhinoScript.rhp “RhinoScript”
C:\Program Files\Rhino 8\Plug-ins\RhinoLabsTools.rhp “Rhino Labs Tools”
C:\Program Files\Rhino 8\Plug-ins\IdleProcessor.rhp “IdleProcessor”
C:\Program Files\Rhino 8\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 8.4.24044.15001
C:\Program Files\Rhino 8\Plug-ins\RhinoRender.rhp “Legacy Rhino Render”
C:\Program Files\Rhino 8\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 8.4.24044.15001
C:\Program Files\Rhino 8\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 8\Plug-ins\MeshCommands.rhp “MeshCommands” 8.4.24044.15001
C:\Program Files\Rhino 8\Plug-ins\IronPython\RhinoDLR_Python.rhp “IronPython” 8.4.24044.15001
C:\Program Files\Rhino 8\Plug-ins\RhinoCycles.rhp “RhinoCycles” 8.4.24044.15001
C:\Program Files\Rhino 8\Plug-ins\RhinoCode\RhinoCodePlugin.rhp “RhinoCodePlugin” 8.4.24044.15001
C:\Program Files\Rhino 8\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 8.4.24044.15001
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”
C:\Program Files\Rhino 8\Plug-ins\NamedPositions.rhp “Named Position”

Hi Lucas - it would be useful to know if this happens without VRay being loaded - if you can work without it for a while, disable it in Options > Plug-ins page and then close and restart Rhino. Can you work for a while without the bad thing happening, when it probably would have happened by now in the past?


Hi Pascal,

The options reset happens at very irregular intervals. Sometimes two days in a row, sometimes it will be ok for a couple weeks without the reset. I think it might be hard to do a controlled troubleshooting disabling Vray since I often need to use Vray several times during a given week.

I will try it and pay attention when I turn Vray back on


The issue just occurred again - for the first time since this original posting eight days ago.

OptionsImport saved me the headache of redoing my settings so I am grateful for that tip. But the issue of losing my settings remains a mystery. I cannot trace it directly to Vray since I have been using vray fairly often throughout these past eight days.

I sent the zip file of the settings after the Reset command to the tech email.

Hi Luca - can you please, when you get things sorted again, export the good settings in th same way?