Grasshopper mouse problems

I have just installed the latest update for rhino 7 for mac, it has also given me the update for grasshopper Saturday 10 April 2021 build 1.0.0007. I can not longer control the components with the right hand click of the mouse, so I can not open them to change them, flatten graft etc.
What can I do to resolve this problem.

Hi Nicholas -

Did this use to work in a previous version of Rhino that you were using?
Does the right mouse button still work in Rhino itself, for example for right-clicking a viewport title?

Yes the right button works in Rhino. Grasshopper was working yesterday, before I installed the update. To finish some urgent work I have reopened the file in Rhino 6 and the grasshopper works fine.

Hi -
Can you please run the Rhino SystemInfo command and copy-paste the result here?

Thanks for reply, I running Rhino 6 at the moment, so I can’t back to 7 for a couple of hours, if I send it early this afternoon will that be ok

There’s no rush on my part : )


Rhino 7 SR5 2021-4-10 (Rhino 7, 7.5.21100.03002, Git hash:master @ 2cd158094b595f6400479d7cbe511454b6149527)
License type: Commercial, build 2021-04-10
License details: Stand-Alone

Apple Intel 64-bit macOS Version 10.14.6 (Build 18G8022) (Physical RAM: 16Gb)
Mac Model Identifier: MacBookPro14,3
Language: en-FR (MacOS default)

AMD Radeon Pro 560 OpenGL Engine (OpenGL ver:4.1 ATI-2.11.23)

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

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

Vendor Name: ATI Technologies Inc.
Render version: 4.1
Shading Language: 4.10
Maximum Texture size: 16384 x 16384
Z-Buffer depth: n/a
Maximum Viewport size: 16384 x 16384
Total Video Memory: 4 GB
Graphics: Radeon Pro 560
Displays: Color LCD (258dpi 2x), DELL U2412M (94dpi 1x), HP L2245w (90dpi 1x)

Graphics processors
Intel HD Graphics 630 (1536 MB)
Radeon Pro 560 (4 GB)
Color LCD (1680 x 1050)
DELL U2412M (1920 x 1200)
HP L2245w (1680 x 1050 @ 60 Hz)

USB devices
Apple Inc.: iBridge
Cable Matters Inc.: Cable Matters USB-C Video Cable
Realtek: USB 10/100/1000 LAN

Bluetooth devices

Third party kernel extensions

Third party plugins

Rhino plugins that do not ship with Rhino

Rhino plugins that ship with Rhino
/Applications/Rhino “Snapshots” 7.5.21100.1002
/Applications/Rhino “PanelingTools” 7.5.21100.1002
/Applications/Rhino “AnimationTools” 7.5.21100.1002
/Applications/Rhino “Renderer Development Kit” 7.5.21100.1002
/Applications/Rhino “Displacement” 7.5.21100.1002
/Applications/Rhino “Legacy Rhino Render” 7.5.21100.1002
/Applications/Rhino “Commands” 7.5.21100.3002
/Applications/Rhino “Import_OBJ” 7.5.21100.3002
/Applications/Rhino “export_xaml” 7.5.21100.3002
/Applications/Rhino “QuadRemesh” 7.5.21100.3002
/Applications/Rhino “export_OBJ” 7.5.21100.3002
/Applications/Rhino “RDK_EtoUI” 7.5.21100.3002
/Applications/Rhino “Export SVG” 7.5.21100.3002
/Applications/Rhino “MeshCommands” 7.5.21100.3002
/Applications/Rhino “Export_DAE” 7.5.21100.3002
/Applications/Rhino “PDF Export” 7.5.21100.3002
/Applications/Rhino “IGES Export Plug-in” 7.5.21100.3002
/Applications/Rhino “Import_SVG” 7.5.21100.3002
/Applications/Rhino “BlockEdit” 7.5.21100.3002
/Applications/Rhino “Export_AMF” 7.5.21100.3002
/Applications/Rhino “Rhino Render” 7.5.21100.3002
/Applications/Rhino “Import_DST” 7.5.21100.3002
/Applications/Rhino “PLY - Polygon File Format Export” 7.5.21100.3002
/Applications/Rhino “Import_AMF” 7.5.21100.3002
/Applications/Rhino “RhinoCycles” 7.5.21100.3002
/Applications/Rhino “IronPython” 7.5.21100.3002
/Applications/Rhino “Grasshopper” 7.5.21100.3002

I think I know the cause, when I use Grasshopper on the mac screen its works fine, but when I move it on to a another screen it does work anymore, this has only occurred since yesterday’s update. Do you know how to correct this ?

1 Like

I also have exactly the same problem.
Grasshopper on second screen allows panning with right mouse button, does not allow right clicking on components, or context menu when right clicking in grasshopper canvas.
Happens when grasshopper is on second screen.
This happened after updating to 7.5, and I experienced this on two different computers.


I think it might be something to do with the resolution on the 2nd screen, mine is not HD like the mac. How about your 2nd screen ?

I have had this issue on two different iMac 5ks.
One with an attached apple Thunderbolt Display at 2560 × 1440, and one with a Dell U2415 at 1920x1200.
One iMac is on Catalina, one is on Big Sur, if that helps.

All - I’ve put this issue on the list as RH-64013. , thanks for the information about this working as expected before Rhino 7.5 and on Rhino 6.

UPDATE: This appears to have been fixed in the latest public 7.6 release candidate. Change your update frequency to “Release Candidate” and install the latest version.

Just installed the 7.6 Release candidate and have this error fixed!
Thank you!
I have an iMac running two monitors and Catalina I can test this on later this week as well :slight_smile: