BUG: copy-paste very very slow in current build (5min 45sec)

I’m noticing that using Crtl-C + Ctrl-V to duplicate geometry in place is very slow in this build, Rhino even goes in to (Not Responding) mode. I just copied and pasted a simple revolve and it took 5min 45sec. This was happening in last week’s build and I just updated to tonights weekly build and problem is still here.


Hi Gustavo - is this true in a new file with just the one object?


it’s true in multiple files, different objects. including pasting anything to a new file too.

Hi Gustavo - what I’m wondering about is a brand new file - actually brand new started with ‘No template’ - also slow? Needless to say, it ain’t happening here, yet…


I see, I think I’m narrowing thsi down to parts that have materials. I’ll emailed you an offending part exported by itself. I tried to import that file I sent you to a default new file (no custom template) and it took that crazy delay that brings my entire computer down.

Hi Gustavo - I added a bugtrack item with the file you sent me - I was able to reproduce the lag/stall.



Hi Pascal,

Was this bug/problem fixed? I’m experiencing verrrry slow - copy/save/autosave - on a R6.3 file

It is only happening on one particular file, a R5 saved as R6.

No bad geometry. Only PlugIn is VRay 3.6.

Over 5 mins on a 630MB file.


This seemed to be fixed for awhile and now I’m experiencing it again. 6.16.19

Hi Dan - this is a very old thread and it doesn’t make much sense to recycle it.
Anyway - Is this file-specific? What are the steps that are necessary to reproduce this?
Please run the Rhino SystemInfo command and post the result here.

Rhino 6 SR16 2019-7-16 (Public Build, 6.16.19197.13284, Git hash:master @ 007ddfea645de8e7b1a90e433246ed90f938d0b7)
License type: Beta, build 2019-07-16
License details: Cloud Zoo. In use by: Dan Taylr ()
Expires on: 2019-08-30

Apple Intel 64-bit macOS Version 10.14.6 (Build 18G87) (Physical RAM: 16Gb)
Mac Model Identifier: MacBookPro14,2
Machine name: Dan’s MacBook Pro
Language: en-US (MacOS default)

Intel® Iris™ Plus Graphics 650 (OpenGL ver:4.1 INTEL-12.10.12)

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

Anti-alias mode: None
Mip Map Filtering: Linear
Anisotropic Filtering Mode: Height

Vendor Name: Intel Inc.
Render version: 4.1
Shading Language: 4.10
Maximum Texture size: 16384 x 16384
Z-Buffer depth: 24 bits
Maximum Viewport size: 16384 x 16384
Total Video Memory: 1536 MB
Graphics: Intel Iris Plus Graphics 650
Displays: Color LCD (256dpi 2x)

Graphics processors
Intel Iris Plus Graphics 650 (1536 MB)
Color LCD (1440 x 900)

USB devices
PreSonus Audio: AudioBox USB
Apple Inc.: USB-C Digital AV Multiport Adapter
Apple Inc.: iPhone
Apple Inc.: Apple T1 Controller
Apple Inc.: USB3.0 Hub

Bluetooth devices

Third party kernel extensions
com.Cycling74.driver.Soundflower (2) 2D779840-7439-31E5-8A66-D786C3F47B75
org.pqrs.driver.Karabiner.VirtualHIDDevice.v061000 (6.10.0) 4D004D1A-ED2F-3780-AD53-A10F286EC759
com.getdropbox.dropbox.kext (1.10.3) F29DD0CB-48D6-311A-9B69-E39CF775493C

Third party plugins

Rhino plugins
/Applications/RhinoWIP.app/Contents/PlugIns/PanelingTools.rhp “PanelingTools” 6.16.19197.1002
/Applications/RhinoWIP.app/Contents/PlugIns/AnimationTools.rhp “AnimationTools” 6.16.19197.1002
/Applications/RhinoWIP.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/RhinoDLR_Python.rhp “IronPython” 6.16.19197.13284
/Applications/RhinoWIP.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/Commands.rhp “Commands” 6.16.19197.13284
/Applications/RhinoWIP.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/GrasshopperPlugin.rhp “Grasshopper” 6.16.19197.13284
/Applications/RhinoWIP.app/Contents/PlugIns/Displacement.rhp “Displacement” 6.16.19197.1002
/Applications/RhinoWIP.app/Contents/PlugIns/RhinoRender.rhp “Rhino Render” 6.16.19197.1002
/Applications/RhinoWIP.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/RDK_EtoUI.rhp “RDK_EtoUI” 6.16.19197.13284
/Applications/RhinoWIP.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/RhinoCycles.rhp “RhinoCycles” 6.16.19197.13284
/Applications/RhinoWIP.app/Contents/PlugIns/NamedSnapshots.rhp “Snapshots” 6.16.19197.1002
/Applications/RhinoWIP.app/Contents/Frameworks/RhMaterialEditor.framework “Renderer Development Kit” 6.16.19197.1002

Interestingly I tried it this morning and I’m not having issues. This did occur mostly when copying from one file to another. I can create another issue if I narrow it down if that helps you.

Yes, please. Thanks!