Lines, like other curves, disappear as soon as you press Enter to finish drawing.
Please run SystemInfo in Rhino and copy/paste the results here.
Rhino 8 SR0 2023-10-31 (Rhino 8, 8.0.23304.09001, Git hash:master @ 20e15cf9bd66e6676f849f22e485cb3e82a8beac)
License type: Commercial, build 2023-10-31
License details: Cloud Zoo
Windows 11 (10.0.22621 SR0.0) or greater (Physical RAM: 8Gb)
.NET 7.0.0
Computer platform: DESKTOP
Standard graphics configuration.
OpenGL Settings
Safe mode: Off
Use accelerated hardware modes: On
Redraw scene when viewports are exposed: On
Graphics level being used: OpenGL 4.1 (primary GPUâs maximum)
Anti-alias mode: 4x
Mip Map Filtering: Linear
Anisotropic Filtering Mode: High
Vendor Name: Parallels and Apple
Render version: 4.1
Shading Language: 4.10
Driver Date: 11-4-2023
Driver Version: 19.1.1.54734
Maximum Texture size: 16384 x 16384
Z-Buffer depth: 24 bits
Maximum Viewport size: 16384 x 16384
Total Video Memory: 4191584 KB
Rhino plugins that do not ship with Rhino
Rhino plugins that ship with Rhino
C:\Program Files\Rhino 8\Plug-ins\Commands.rhp âCommandsâ 8.0.23304.9001
C:\Program Files\Rhino 8\Plug-ins\rdk.rhp âRenderer Development Kitâ
C:\Program Files\Rhino 8\Plug-ins\RhinoRenderCycles.rhp âRhino Renderâ 8.0.23304.9001
C:\Program Files\Rhino 8\Plug-ins\rdk_etoui.rhp âRDK_EtoUIâ 8.0.23304.9001
C:\Program Files\Rhino 8\Plug-ins\NamedSnapshots.rhp âSnapshotsâ
C:\Program Files\Rhino 8\Plug-ins\MeshCommands.rhp âMeshCommandsâ 8.0.23304.9001
C:\Program Files\Rhino 8\Plug-ins\RhinoCycles.rhp âRhinoCyclesâ 8.0.23304.9001
C:\Program Files\Rhino 8\Plug-ins\RhinoCode\RhinoCodePlugin.rhp âRhinoCodePluginâ 8.0.23304.9001
C:\Program Files\Rhino 8\Plug-ins\Toolbars\Toolbars.rhp âToolbarsâ 8.0.23304.9001
C:\Program Files\Rhino 8\Plug-ins\3dxrhino.rhp â3Dconnexion 3D Mouseâ
C:\Program Files\Rhino 8\Plug-ins\Displacement.rhp âDisplacementâ
C:\Program Files\Rhino 8\Plug-ins\SectionTools.rhp âSectionToolsâ
Virtualization like Parallels isnât supported (see system requirements page: https://www.rhino3d.com/8/system-requirements/ )
@Andrey_Kedrinskiy
Tools > Options > View > OpenGL, move the level slider one tick to the left.
Thank you much! Problem solved.