Rhino 7.8 Crashing when Trimming

[Mike_A]

Hi, Rhino 7.8 is crashing repeatedly when Trimming.
If I draw a horizontal rectangle, then extrude it upwards, then draw a line accross it in the front viewport, then try to trim it…It crashes.

If I use Split…it works fine.

It has only been happening today.

Rhino 7 SR8 2021-6-9 (Rhino 7, 7.8.21160.05001, Git hash:master @ 9070c33ca93e552d4fa2ae1038d65e6ff1ded0e8)
License type: Commercial, build 2021-06-09
License details: Cloud Zoo

Windows 10.0.19042 SR0.0 or greater (Physical RAM: 64Gb)

Computer platform: DESKTOP

Standard graphics configuration.
Primary display and OpenGL: NVIDIA GeForce RTX 2060 (NVidia) Memory: 6GB, Driver date: 5-6-2021 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 462.59
> Accelerated graphics device with 4 adapter port(s)
- Windows Main Display attached to adapter port #0

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: 4x
Mip Map Filtering: Linear
Anisotropic Filtering Mode: High

Vendor Name: NVIDIA Corporation
Render version: 4.6
Shading Language: 4.60 NVIDIA
Driver Date: 5-6-2021
Driver Version: 27.21.14.6259
Maximum Texture size: 32768 x 32768
Z-Buffer depth: 24 bits
Maximum Viewport size: 32768 x 32768
Total Video Memory: 6 GB

Rhino plugins that do not ship with Rhino
C:\Program Files\Bongo 2.0 (64-bit)\Rhino6\Bongo.20.rhp “Bongo 2.0”
C:\Program Files\Rhino 6\Plug-ins\RhinoResurf\RhinoResurf_r6.rhp “RhinoResurf”
C:\Users\Mike\AppData\Roaming\McNeel\Rhinoceros\7.0\Plug-ins\Twinmotion Direct Link 2020.2 (e24ee14a-9514-47da-8fe6-f6e61b20160e)\Twinmotion Direct Link 2020.rhp “Twinmotion Direct Link 2020” 1.0.6.0
C:\Program Files\Chaos Group\V-Ray\V-Ray for Rhinoceros\V7\VRayForRhino.rhp “V-Ray for Rhino”
C:\Program Files\Bongo 2.0 (64-bit)\BongoUI.20.v60.rhp “BongoUI20v60”
C:\Users\Mike\AppData\Roaming\McNeel\Rhinoceros\packages\7.0\AMDDenoiser\0.5.2\AMDDenoiser.Windows.rhp “AMDDenoiser.Windows” 0.5.2.0
C:\Users\Mike\AppData\Roaming\McNeel\Rhinoceros\packages\7.0\IntelDenoiser\0.6.3\IntelDenoiser.Windows.rhp “IntelDenoiser.Windows” 0.6.3.0
C:\Users\Mike\AppData\Roaming\McNeel\Rhinoceros\packages\7.0\NVIDIADenoiser\0.4.1\NVIDIADenoiser.Windows.rhp “NVIDIADenoiser.Windows” 0.4.1.0

Rhino plugins that ship with Rhino
C:\Program Files\Rhino 7\Plug-ins\Commands.rhp “Commands” 7.8.21160.5001
C:\Program Files\Rhino 7\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 7\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 7.8.21160.5001
C:\Program Files\Rhino 7\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 7.8.21160.5001
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” 7.8.21160.5001
C:\Program Files\Rhino 7\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 7.8.21160.5001
C:\Program Files\Rhino 7\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
C:\Program Files\Rhino 7\Plug-ins\Displacement.rhp “Displacement”
C:\Users\Mike\AppData\Roaming\McNeel\Rhinoceros\packages\7.0\SectionTools\2021.4.30.511\SectionTools.rhp “SectionTools”

[nathanletwory (Nathan 'jesterKing' Letwory)]

Trim Crash

I’ve had something weird suddenly happen to a file. In this sample file if I try to trim off the bottom of the red extrusion using the plane, the whole exstrusion disappears and Rhino crashes with a memory allocation error?? Split works. trim error.3dm (144.4 KB)

Or more specifically

Trim Crash

Hi all - This is a know issue in the service release candidate. It has been fixed and the next release candidate should be fine. For now, revert to Service Release 7. -wim

[lucio_zadra]

Hi @nathanletwory ,
just to know, which is the recommended procedure to switch from SRC to the official SR?
The options that come in mind are:

• use Windows restore point?
• download the SR manually and install over SRC?
• select SR in Rhino options and wait until automatic update download the SR?
• uninstall Rhino and install from the last release on McNeel site (after that installing last SR)?

[nathanletwory (Nathan 'jesterKing' Letwory)]

@lucio_zadra

uninstall Rhino and install from the last release on McNeel site (after that installing last SR)?

Latest release on our site is also the latest SR.

[lucio_zadra]

@nathanletwory

Latest release on our site is also the latest SR.

Ok, so, to solve problems with SRC the recommended way is to uninstall Rhino and install with latest release?
I ask it because I can’t find an answer from McNeel team to know how to manage a “downgrade” from SRC to SR (this would be useful also for the future).

[Baasab]

Hello, I also experienced this problem, lucilly I’m not the only one.

please advise how to downgrade to the previous update, while there is work to do.

[nathanletwory (Nathan 'jesterKing' Letwory)]

• uninstall current SRC
• download latest release
• install

[Baasab]

a little bit more explanation is much appreciated:

-How do you uninstall the current SRC?
-Where to download the right release, assuming the latest causes this trouble. (a link is helpfull)
-how to install? (think I know that one, but there are users of Rhino which are users only)

thanks

[nathanletwory (Nathan 'jesterKing' Letwory)]

@Baasab

How do you uninstall the current SRC?

Regular uninstall via Windows. Settings > Apps. Type Rhino and select Rhino 7. Click Uninstall.

@Baasab

Where to download the right release

https://www.rhino3d.com/download/rhino-for-windows/7/latest

@Baasab

how to install?

Run the installer you downloaded.

[lucio_zadra]

@nathanletwory

Regular uninstall via Windows. Settings > Apps. Type Rhino and select Rhino 7. Click Uninstall.

Ok, that’s the answer I was looking for!
Thanks!

[Baasab]

done that, that worked well, thanks!