Rhino crashes when Grasshopper is launched

Grasshopper GH for Mac
1

Hi,

When I start Grasshopper on Mac, Rhino crashes and I need to Force Quit.
I already uninstall the 3rd party plugins.
I tried GrasshopperLoadOneByOne, even without loading any/or one default plugin, it crashes as soon as it reaches 100%.

Below the SystemInfo:

Rhino 8 SR29 2026-3-4 (Rhino 8, 8.29.26063.11002, Git hash:master @ bbd126f84fcdaf7a974615b7c9f4f8667571c147)
License type: Educational, build 2026-03-04
License details: Cloud Zoo

Apple macOS Version 14.6.1 (Build 23G93) (Physical RAM: 18GB)
Mac Model Identifier: Mac15,6
Language: en-US (MacOS default)
.NET 8.0.14

Metal GPU Family Apple 7
Metal GPU Family Common 3
Metal GPU Family Mac 2
Graphics processors
  Apple M3 Pro
    S34C65xU (3440 x 1440 @ 60.00Hz)
    Color LCD (1800 x 1169 @ 120.00Hz)
GPU Vendor: Apple

USB devices
  Realtek: USB 10/100/1000 LAN
  Apple Inc.: iPhone

Bluetooth devices
  None

Third party kernel extensions
  None

Third party plugins
  /usr/lib/swift/libswiftCore.dylib
  /usr/lib/swift/libswiftCoreFoundation.dylib
  /usr/lib/swift/libswiftCoreGraphics.dylib
  /usr/lib/swift/libswiftCoreImage.dylib
  /usr/lib/swift/libswiftDarwin.dylib
  /usr/lib/swift/libswiftDispatch.dylib
  /usr/lib/swift/libswiftIOKit.dylib
  /usr/lib/swift/libswiftMetal.dylib
  /usr/lib/swift/libswiftOSLog.dylib
  /usr/lib/swift/libswiftObjectiveC.dylib
  /usr/lib/swift/libswiftQuartzCore.dylib
  /usr/lib/swift/libswiftUniformTypeIdentifiers.dylib
  /usr/lib/swift/libswiftXPC.dylib
  /usr/lib/swift/libswift_Concurrency.dylib
  /usr/lib/swift/libswiftos.dylib
  /usr/lib/swift/libswiftsimd.dylib
  /usr/lib/swift/libswift_StringProcessing.dylib
  /usr/lib/swift/libswift_RegexParser.dylib
  /Library/Frameworks/3DconnexionClient.framework/Versions/A/3DconnexionClient
  /usr/lib/swift/libswiftCryptoTokenKit.dylib
  /usr/lib/usd/libusd_ms.dylib
  /usr/lib/swift/libswiftCoreAudio.dylib
  /usr/lib/swift/libswiftCoreLocation.dylib
  /usr/lib/swift/libswiftCoreMedia.dylib
  /usr/lib/swift/libswiftCompression.dylib
  /usr/lib/swift/libswiftCoreMIDI.dylib
  /usr/lib/swift/libswiftAVFoundation.dylib
  /usr/lib/swift/libswiftCoreML.dylib
  /usr/lib/swift/libswiftFileProvider.dylib
  /usr/lib/swift/libswiftIntents.dylib
  /usr/lib/swift/libswiftAccelerate.dylib
  /usr/lib/swift/libswiftGLKit.dylib
  /usr/lib/swift/libswiftGameplayKit.dylib
  /usr/lib/swift/libswiftMetalKit.dylib
  /usr/lib/swift/libswiftModelIO.dylib
  /usr/lib/swift/libswiftSceneKit.dylib
  /usr/lib/swift/libswiftSpriteKit.dylib
  /usr/lib/swift/libswiftVision.dylib
  /usr/lib/swift/libswiftRegexBuilder.dylib
  /usr/lib/swift/libswiftDemangle.dylib
  /usr/lib/swift/libswiftShazamKit.dylib
  /usr/lib/swift/libswiftObservation.dylib
  /usr/lib/swift/libswiftVideoToolbox.dylib
  /usr/lib/swift/libswiftWebKit.dylib
  /usr/lib/swift/libswiftNaturalLanguage.dylib
  /usr/lib/swift/libswiftSystem.dylib
  /usr/lib/swift/libswiftMapKit.dylib
  /usr/lib/swift/libswiftFoundation.dylib
  /usr/lib/log/liblog_network.dylib


Rhino plugins that do not ship with Rhino

Rhino plugins that ship with Rhino
  /Applications/Rhino 8.app/Contents/Frameworks/RhMaterialEditor.framework	"Renderer Development Kit"	8.29.26063.1002
  /Applications/Rhino 8.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/Commands.rhp	"Commands"	8.29.26063.11002
  /Applications/Rhino 8.app/Contents/PlugIns/NamedSnapshots.rhp	"Snapshots"	8.29.26063.1002
  /Applications/Rhino 8.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/RDK_EtoUI.rhp	"RDK_EtoUI"	8.29.26063.11002
  /Applications/Rhino 8.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/MeshCommands.rhp	"MeshCommands"	8.29.26063.11002
  /Applications/Rhino 8.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/RhinoRenderCycles.rhp	"Rhino Render"	8.29.26063.11002
  /Applications/Rhino 8.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/RhinoCycles.rhp	"RhinoCycles"	8.29.26063.11002
  /Applications/Rhino 8.app/Contents/PlugIns/SectionTools.rhp	"SectionTools"	8.29.26063.1002
  /Applications/Rhino 8.app/Contents/PlugIns/Displacement.rhp	"Displacement"	8.29.26063.1002
  /Applications/Rhino 8.app/Contents/PlugIns/PanelingTools.rhp	"PanelingTools"	8.29.26063.1002
  /Applications/Rhino 8.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/RhinoDLR_Python.rhp	"IronPython"	8.29.26063.11002
  /Applications/Rhino 8.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/GrasshopperPlugin.rhp	"Grasshopper"	8.29.26063.11002
  /Applications/Rhino 8.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/RhinoCodePlugin.rhp	"RhinoCodePlugin"	8.29.26063.11002

Many thanks in advance for your help!

Best,
Aurèle

2

Any particular reason you’re on this version? That was back in 2024.

I would continue going down the plugin troubleshooting route. Perhaps moving the Grasshopper plugins out of their folder.

3

Japhy, thank you for your feedback: I don’t know to be honest but I’m now on 26.3.1.

No luck with Tahoe but I removed the Grasshopper folder from the Plug-ins folder - and it works again !!

Thanks !