Surface blending troubles

Hello everyone!
So i have some display troubles
I have a direction line (rail) and i need to build a pipe along that line
But whenever i use sweep\pipe or simply extrude circle, endings of the pipe does not display properly. Any ideas what to press so it will be good?
I use Rhino7 for windows


Hi -

Please run the Rhino SystemInfo command and copy-paste the output here.
Also please post the 3dm file that you are having issues with.
-wim

Rhino 7 SR1 2020-10-25 (Rhino 7, 7.1.20299.23101, Git hash:master @ 8d9ce31398d29589acec390d2167dc68806d5b79)
License type: Commercia, build 2020-10-25
License details: Stand-Alone

Windows 10.0 SR0.0 or greater (Physical RAM: 32Gb)

Non-hybrid graphics.
Primary display and OpenGL: NVIDIA GeForce RTX 2060 (NVidia) Memory: 6GB, Driver date: 8-14-2024 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 560.94

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: 4-11-2024
Driver Version: 31.0.15.5222
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

Rhino plugins that ship with Rhino
C:\Program Files\Rhino 7\Plug-ins\Commands.rhp “Commands” 7.1.20299.23101
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\RPC.rhp “RPC”
C:\Program Files\Rhino 7\Plug-ins\IdleProcessor.rhp “IdleProcessor”
C:\Program Files\Rhino 7\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 7.1.20299.23101
C:\Program Files\Rhino 7\Plug-ins\RhinoRender.rhp “Legacy Rhino Render”
C:\Program Files\Rhino 7\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 7.1.20299.23101
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” 7.1.20299.23101
C:\Program Files\Rhino 7\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 7.1.20299.23101
C:\Program Files\Rhino 7\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
C:\Program Files\Rhino 7\Plug-ins\BlockEdit.rhp “BlockEdit” 7.1.20299.23101
C:\Program Files\Rhino 7\Plug-ins\Displacement.rhp “Displacement”
1.3dm (14.9 MB)

Wow… we’re on SR 37… please update.