I did the update for Rhino yesterday, so I have the latest version. Been trying to trim some surfaces today for multiple models - very simple surfaces, just trimming into circles, and Rhino is crashing upon completion of each trim command. I.e., I trim the surface, it trims, then it crashes.
Windows Event viewer shows up w/ this error each time for Rhino 
Log Name: Application
Source: Application Error
Date: 6/12/2021 5:39:24 PM
Event ID: 1000
Task Category: (100)
Level: Error
Keywords: Classic
User: N/A
Computer: DESKTOP-U7KOLCK
Description:
Faulting application name: Rhino.exe, version: 7.8.21160.5001, time stamp: 0x60c0b783
Faulting module name: ntdll.dll, version: 10.0.19041.1023, time stamp: 0x7977b9de
Exception code: 0xc0000374
Fault offset: 0x00000000000ff199
Faulting process id: 0x3154
Faulting application start time: 0x01d75fec4b34dddc
Faulting application path: C:\Program Files\Rhino 7\System\Rhino.exe
Faulting module path: C:\Windows\SYSTEM32\ntdll.dll
Report Id: 3e8567d7-dc15-48d1-96c2-f7a44e06b8f5
Faulting package full name:
Faulting package-relative application ID:
Event Xml:
1000
0
2
100
0
0x80000000000000
28983
Application
DESKTOP-U7KOLCK
Rhino.exe
7.8.21160.5001
60c0b783
ntdll.dll
10.0.19041.1023
7977b9de
c0000374
00000000000ff199
3154
01d75fec4b34dddc
C:\Program Files\Rhino 7\System\Rhino.exe
C:\Windows\SYSTEM32\ntdll.dll
3e8567d7-dc15-48d1-96c2-f7a44e06b8f5
Rhino just closes, no idea why.
Help much appreciated.
System Information
Rhino 7 SR8 2021-6-9 (Rhino 7, 7.8.21160.05001, Git hash:master @ 9070c33ca93e552d4fa2ae1038d65e6ff1ded0e8)
License type: Educational, build 2021-06-09
License details: Cloud Zoo
Windows 10.0.19042 SR0.0 or greater (Physical RAM: 32Gb)
Computer platform: LAPTOP - Plugged in [98% battery remaining]
Non-hybrid graphics configuration.
Primary display and OpenGL: NVIDIA GeForce RTX 2070 (NVidia) Memory: 8GB, Driver date: 5-6-2021 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 462.59
> Integrated accelerated graphics device with 4 adapter port(s)
- Secondary monitor is laptop’s integrated screen or built-in port
- Windows Main Display attached to adapter port #1
Secondary graphics devices.
Intel(R) UHD Graphics (Intel) Memory: 1GB, Driver date: 1-20-2021 (M-D-Y).
> Integrated graphics device with 3 adapter port(s)
- Secondary monitor is laptop’s integrated screen or built-in port
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: 8 GB
Rhino plugins that do not ship with Rhino
c:\Program Files\Solemma\ClimateStudio\bin\ClimateStudioRhino.rhp “ClimateStudioRhino” 1.1.7722.23204
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\WebBrowser.rhp “WebBrowser”
C:\Program Files\Rhino 7\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 7\Plug-ins\RhinoScript.rhp “RhinoScript”
C:\Program Files\Rhino 7\Plug-ins\IdleProcessor.rhp “IdleProcessor”
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\Alerter.rhp “Alerter”
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”