This problems appears to be system dependent. It occurs on my laptop but not my desktop.
@inju Can you post your SystemInfo?
SystemInfo for my laptop which has the bug:
Rhino 7 SR0 2020-10-20 (Rhino 7 BETA, 7.0.20294.14003, Git hash:master @ bdc247ad45c0794cd5f92a75066b4a0c60923b81)
License type: Commercial, build 2020-10-20
License details: Cloud Zoo
Expires on: 2020-12-04
Windows 10.0 SR0.0 or greater (Physical RAM: 12Gb)
Hybrid graphics system.
Primary display: Intel® HD Graphics 4600 (Intel) Memory: 1GB, Driver date: 5-15-2020 (M-D-Y).
Primary OpenGL: NVIDIA GeForce GTX 860M (NVidia) Memory: 2GB, Driver date: 4-3-2020 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 445.87
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: NVIDIA Corporation
Render version: 4.6
Shading Language: 4.60 NVIDIA
Driver Date: 4-3-2020
Driver Version: 26.21.14.4587
Maximum Texture size: 16384 x 16384
Z-Buffer depth: 24 bits
Maximum Viewport size: 16384 x 16384
Total Video Memory: 2 GB
Rhino plugins that do not ship with Rhino
Rhino plugins that ship with Rhino
C:\Program Files\Rhino 7 WIP\Plug-ins\Commands.rhp “Commands” 7.0.20294.14003
C:\Program Files\Rhino 7 WIP\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 7 WIP\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 7.0.20294.14003
C:\Program Files\Rhino 7 WIP\Plug-ins\RhinoRender.rhp “Legacy Rhino Render”
C:\Program Files\Rhino 7 WIP\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 7.0.20294.14003
C:\Program Files\Rhino 7 WIP\Plug-ins\rdk_ui.rhp “Renderer Development Kit UI”
C:\Program Files\Rhino 7 WIP\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 7 WIP\Plug-ins\RhinoCycles.rhp “RhinoCycles” 7.0.20294.14003
C:\Program Files\Rhino 7 WIP\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 7.0.20294.14003
C:\Program Files\Rhino 7 WIP\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
C:\Program Files\Rhino 7 WIP\Plug-ins\Displacement.rhp “Displacement”
C:\Program Files\Rhino 7 WIP\Plug-ins\Calc.rhp “Calc”
SystemInfo for my desktop which does not have the bug:
Rhino 7 SR0 2020-10-20 (Rhino 7 BETA, 7.0.20294.14003, Git hash:master @ bdc247ad45c0794cd5f92a75066b4a0c60923b81)
License type: Commercial, build 2020-10-20
License details: Cloud Zoo
Expires on: 2020-12-04
Windows 10.0 SR0.0 or greater (Physical RAM: 16Gb)
Non-hybrid graphics.
Primary display and OpenGL: AMD Radeon HD 7700 Series (AMD) Memory: 2GB, Driver date: 5-15-2020 (M-D-Y). OpenGL Ver: 4.6.13587 Compatibility Profile Context 20.4.2 26.20.15029.27017
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: 4.6
Shading Language: 4.60
Driver Date: 5-15-2020
Driver Version: 26.20.15029.27017
Maximum Texture size: 16384 x 16384
Z-Buffer depth: 24 bits
Maximum Viewport size: 16384 x 16384
Total Video Memory: 2 GB
Rhino plugins that do not ship with Rhino
Rhino plugins that ship with Rhino
C:\Program Files\Rhino WIP\Plug-ins\Commands.rhp “Commands” 7.0.20294.14003
C:\Program Files\Rhino WIP\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino WIP\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 7.0.20294.14003
C:\Program Files\Rhino WIP\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 7.0.20294.14003
C:\Program Files\Rhino WIP\Plug-ins\rdk_ui.rhp “Renderer Development Kit UI”
C:\Program Files\Rhino WIP\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino WIP\Plug-ins\RhinoCycles.rhp “RhinoCycles” 7.0.20294.14003
C:\Program Files\Rhino WIP\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 7.0.20294.14003
C:\Program Files\Rhino WIP\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
C:\Program Files\Rhino WIP\Plug-ins\Displacement.rhp “Displacement”