Rhino 6 crashes when copying elements between files

Rhino 6 crashes when copying elements between files.
It also crashes when you try to revert changes instead of saving the file.
The files are probably v5 files to begin with but have since been saved as 6.
Any clues? I have gone back to using Rhino 5 in the meantime, as I find 6 too unstable… despite the improved make 2d
best wishes

Clem

Hi Clem - does Rhino crash when you start two new documents from factory-default Rhino 6 templates and copy an object from one to the other?
Are you sending in crash reports?
Could you run the Rhino SystemInfo command and post the result here?
-wim

Rhino 6 SR16 2019-7-24 (Public Build, 6.16.19205.01052, Git hash:master @ aabd31c71f909ed56d1d8f5ebc69bc7a83b7189e)
License type: Educational, build 2019-07-24
License details: Cloud Zoo. In use by:

Apple Intel 64-bit macOS Version 10.13.6 (Build 17G8030) (Physical RAM: 32Gb)
Mac Model Identifier: iMac17,1
Machine name:
Language: en-GB (MacOS default)

AMD Radeon R9 M395X OpenGL Engine (OpenGL ver:4.1 ATI-1.68.23)

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: Height

Vendor Name: ATI Technologies 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: 4 GB
Graphics: AMD Radeon R9 M395X
Displays: iMac (217dpi 2x)

Graphics processors
AMD Radeon R9 M395X (4096 MB)
iMac (2560 x 1440)

USB devices
Western Digital: Elements 25A2
Western Digital: My Passport 0820
Canon: CanoScan
Broadcom Corp.: Bluetooth USB Host Controller
Apple Inc.: FaceTime HD Camera (Built-in)
GenesysLogic: USB2.0 Hub
Apple Inc.: MacBook Air SuperDrive

Bluetooth devices
Broadcom: Logitech Bluetooth Wireless Mouse SDP Server, Logitech Bluetooth Wireless Mouse, Logitech Bluetooth Wireless Mouse PnP Server
Broadcom: Magic Keyboard
Broadcom: Magic Trackpad 2

Third party kernel extensions
com.3dconnexion.driver (1.1.0) 94E8C49C-EDED-3526-88BE-E7207560C0D2
at.obdev.nke.LittleSnitch (5422) 509CF51B-5610-3C03-A651-5FA527B6E52B
com.paragon-software.filesystems.ntfs (53.5.15) CB2BE048-286B-3A59-8656-162574EAA91A
com.getdropbox.dropbox.kext (1.10.3) F29DD0CB-48D6-311A-9B69-E39CF775493C

Third party plugins
/Library/Frameworks/3DconnexionClient.framework/Versions/A/3DconnexionClient
/Library/Frameworks/iTunesLibrary.framework/iTunesLibrary

Rhino plugins
/Applications/Rhinoceros.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/RhinoCycles.rhp “RhinoCycles” 6.16.19205.1052
/Applications/Rhinoceros.app/Contents/PlugIns/NamedSnapshots.rhp “Snapshots” 6.16.19205.1002
/Applications/Rhinoceros.app/Contents/PlugIns/RhinoBonusTools.rhp “Rhino Bonus Tools” 6.16.19205.1002
/Applications/Rhinoceros.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/GrasshopperPlugin.rhp “Grasshopper” 6.16.19205.1052
/Applications/Rhinoceros.app/Contents/PlugIns/PanelingTools.rhp “PanelingTools” 6.16.19205.1002
/Applications/Rhinoceros.app/Contents/PlugIns/AnimationTools.rhp “AnimationTools” 6.16.19205.1002
/Applications/Rhinoceros.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/Commands.rhp “Commands” 6.16.19205.1052
/Applications/Rhinoceros.app/Contents/Frameworks/RhMaterialEditor.framework “Renderer Development Kit” 6.16.19205.1002
/Applications/Rhinoceros.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/RDK_EtoUI.rhp “RDK_EtoUI” 6.16.19205.1052
/Applications/Rhinoceros.app/Contents/PlugIns/Displacement.rhp “Displacement” 6.16.19205.1002
/Applications/Rhinoceros.app/Contents/PlugIns/NamedPositions.rhp “Named Position” 6.16.19205.1002
/Applications/Rhinoceros.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/RhinoDLR_Python.rhp “IronPython” 6.16.19205.1052
/Applications/Rhinoceros.app/Contents/PlugIns/RhinoRender.rhp “Rhino Render” 6.16.19205.1002

Dear Wim,
So i tried what you suggested and made two drawings with the default small metres template and copied objects between both with no problems…

Should I put my models into a new drawing made with a default template and see if it works?
The only setting I usually change in the default template is the precision…I draw in metres but like my precision a like a millimetres template.

I also posted the sys info details.

best wishes
Clem

Hi Clem - Since it seems that this is something file-specific, please post the files that you are normally working with so that we can try to reproduce the issue. Thanks,
-wim

Hi I narrowed down to the blocks with the long tables and the loungers…
I am building models of urban beaches if you a wondering what an earth I am doing…
The blocks originally come from sketchup warehouse, but I imported them as trimmed planes and then modified them a bit.

Best wishes

Clem