Can't run multiple instances of Rhino7

With Rhino running, opening another instance from the executable causes the current instance to shutdown without warning. There is no prompt to save work.

I am also using MatrixGold 3.1 and Rhino will not open any files with MatrixGold running. It will get to the splashscreen and then disappear.

Any help would be appreciated!

Try to see if disabling MatrixGold solves the problem. If it does, contact the MatrixGold support people.

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MatrixGold isn’t running when I start another instance of Rhino from the executable for the existing instance to shutdown without warning. Is this a common behaviour or Rhino?

No, you can normally run multiple instances of Rhino concurrently without problem.

If you open one instance of Rhino and run the Systeminfo command from the Rhino command line, then copy and paste the output into this thread, you will give us a starting point from which to analyse what is going on.


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OS Name Microsoft Windows 11 Home
Version 10.0.22621 Build 22621
Other OS Description Not Available
OS Manufacturer Microsoft Corporation
System Name JC64-CAD-MEDION
System Manufacturer MEDION
System Model BEAST X30
System Type x64-based PC
System SKU ML-210009 30033995
Processor 12th Gen Intel(R) Core™ i7-12700H, 2300 Mhz, 14 Core(s), 20 Logical Processor(s)
BIOS Version/Date American Megatrends International, LLC. N.1.08MED08, 11/04/2022
SMBIOS Version 3.4
Embedded Controller Version 1.08
BaseBoard Manufacturer MEDION
BaseBoard Product GM7AxxP
BaseBoard Version 1.0
Platform Role Mobile
Secure Boot State On
PCR7 Configuration Elevation Required to View
Windows Directory C:\WINDOWS
System Directory C:\WINDOWS\system32
Boot Device \Device\HarddiskVolume1
Locale United States
Hardware Abstraction Layer Version = 10.0.22621.819
Username JC64-CAD-MEDION\44753
Time Zone GMT Standard Time
Installed Physical Memory (RAM) 32.0 GB
Total Physical Memory 31.7 GB
Available Physical Memory 17.6 GB
Total Virtual Memory 33.8 GB
Available Virtual Memory 9.90 GB
Page File Space 2.05 GB
Page File C:\pagefile.sys
Kernel DMA Protection On
Virtualisation-based security Running
Virtualisation-based security required security properties
Virtualisation-based security available security properties Base Virtualisation Support, Secure Boot, DMA Protection, UEFI Code Readonly, SMM Security Mitigations 1.0, Mode Based Execution Control, APIC Virtualisation
Virtualisation-based security services configured Hypervisor enforced Code Integrity
Virtualisation-based security services running Hypervisor enforced Code Integrity
Windows Defender Application Control policy Enforced
Windows Defender Application Control user mode policy Off
Device Encryption Support Elevation Required to View
A hypervisor has been detected. Features required for Hyper-V will not be displayed.

Thanks, but I was referring to this:

leading to this:

Since this a MatrixGold setup, I wonder if they are running it as Administrator…

Full administrator rights. Only user on this computer,

Rhino 7 SR24 2022-11-4 (Rhino 7, 7.24.22308.15001, Git hash:master @ cb2ad12922ceb989b185972675bb705a00abb97d)
License type: Commercial, build 2022-11-04
License details: Cloud Zoo

Windows 11 (10.0.22621 SR0.0) or greater (Physical RAM: 32Gb)

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

Non-hybrid graphics configuration.
Primary display and OpenGL: NVIDIA GeForce RTX 3080 Ti Laptop GPU (NVidia) Memory: 16GB, Driver date: 8-2-2022 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 517.00
> 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) Iris(R) Xe Graphics (Intel) Memory: 1GB, Driver date: 5-31-2022 (M-D-Y).
> Integrated graphics device with 4 adapter port(s)
- Secondary monitor is laptop’s integrated screen or built-in port

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: 8x
Mip Map Filtering: Linear
Anisotropic Filtering Mode: High

Vendor Name: NVIDIA Corporation
Render version: 4.6
Shading Language: 4.60 NVIDIA
Driver Date: 8-2-2022
Driver Version:
Maximum Texture size: 32768 x 32768
Z-Buffer depth: 24 bits
Maximum Viewport size: 32768 x 32768
Total Video Memory: 16 GB

Rhino plugins that do not ship with Rhino
C:\Program Files\Gemvision\MatrixGold\MatrixGoldPlugin\MatrixGoldPlugin.rhp “MatrixGoldPlugin” 3.1.22284.1001
C:\Users\44753\AppData\Roaming\McNeel\Rhinoceros\packages\7.0\NVIDIADenoiser\0.4.3\NVIDIADenoiser.Windows.rhp “NVIDIADenoiser.Windows”

Rhino plugins that ship with Rhino
C:\Program Files\Rhino 7\Plug-ins\Commands.rhp “Commands” 7.24.22308.15001
C:\Program Files\Rhino 7\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 7\Plug-ins\RPC.rhp “RPC”
C:\Program Files\Rhino 7\Plug-ins\AnimationTools.rhp “AnimationTools”
C:\Program Files\Rhino 7\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 7.24.22308.15001
C:\Program Files\Rhino 7\Plug-ins\RhinoRender.rhp “Legacy Rhino Render”
C:\Program Files\Rhino 7\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 7.24.22308.15001
C:\Program Files\Rhino 7\Plug-ins\rdk_ui.rhp “Renderer Development Kit UI”
C:\Program Files\Rhino 7\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 7\Plug-ins\RhinoCycles.rhp “RhinoCycles” 7.24.22308.15001
C:\Program Files\Rhino 7\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 7.24.22308.15001
C:\Program Files\Rhino 7\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
C:\Program Files\Rhino 7\Plug-ins\Displacement.rhp “Displacement”

Hi -
As Menno suggested, disable MatrixGold in the plug-in manager and restart Rhino.

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Ah misread that, sorry Menno. Will give it a go and update.

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Menno! You’re a life saver. Disabling the MatrixGold plugin seems to have done the trick. Opening multiple of Rhino and MatrixGold from executables, from files, with no issues! Thank you!

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