Make2d creates multiple and un continuous, very bad scence sillourtte curves

my system info
Rhino 7 SR5 2021-4-10 (Rhino 7, 7.5.21100.03001, Git hash:master @ 2cd158094b595f6400479d7cbe511454b6149527)
License type: Evaluation, build 2021-04-10
License details: Stand-Alone
Expires on: 2021-07-12

Windows 10.0.19042 SR0.0 or greater (Physical RAM: 16Gb)

Computer platform: LAPTOP - Plugged in [57% battery remaining]

Hybrid graphics configuration.
Primary display: Intel(R) HD Graphics 520 (Intel) Memory: 1GB, Driver date: 2-28-2018 (M-D-Y).
> Integrated graphics device with 3 adapter port(s)
- Windows Main Display is laptop’s integrated screen or built-in port
Primary OpenGL: AMD Radeon ™ R7 M360 (AMD) Memory: 4GB, Driver date: 3-26-2021 (M-D-Y). OpenGL Ver: 4.6.148202 Compatibility Profile Context 21.3.2 27.20.15003.5017
> Integrated accelerated graphics device (shares primary device ports)
- Video pass-through to primary display device

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: High

Vendor Name: ATI Technologies Inc.
Render version: 4.6
Shading Language: 4.60
Driver Date: 3-26-2021
Driver Version: 27.20.15003.5017
Maximum Texture size: 16384 x 16384
Z-Buffer depth: 24 bits
Maximum Viewport size: 16384 x 16384
Total Video Memory: 4 GB

Rhino plugins that do not ship with Rhino
C:\Program Files\Geometry Gym\Rhino7\ggRhinoIFC.rhp “ggRhinoIFC” 2.1.12.0
C:\Program Files\Rhino 7\Plug-ins\Karamba\License\Karamba3D_LicensePlugin_Rhino7.rhp “Karamba3DLicense”
C:\Program Files\Geometry Gym\Rhino7\BullAnt.rhp “bullant” 1.5.6.0
C:\Program Files\Geometry Gym\Rhino7\ggKaramba.rhp “ggKaramba” 0.2.3.0
C:\Program Files\Bongo 2.0 (64-bit)\Rhino6\Bongo.20.rhp “Bongo 2.0”
C:\ProgramData\Beam\App\MKS\bin\RHINOBEAM.dll “MKS BEAM” 1.5.1.1
C:\Program Files\RhinoNestRhino6\System\RhinoNest.rhp “RhinoNest” 4.6.18354.2
C:\Users\20101\AppData\Roaming\McNeel\Rhinoceros\7.0\Plug-ins\SpeckleRhino2 (8dd5f30b-a13d-4a24-abdc-3e05c8c87143)\SpeckleConnectorRhino.rhp “SpeckleRhino2” 2.1.8.4250
C:\Users\20101\AppData\Local\Programs\Enscape\Bin64\Enscape.Rhino7.Plugin.dll “Enscape.Rhino7.Plugin” 0.0.20335.757
C:\Users\20101\AppData\Roaming\McNeel\Rhinoceros\7.0\Plug-ins\KeyShot10RhinoPlugin (ccedd9da-83b9-429a-aec5-8ec90b85fe67)\1.0.0.0\KeyShot10RhinoPlugin\Rhino 5.0\KeyShot10RhinoPlugin.rhp “KeyShot10RhinoPlugin” 1.0.0.0
C:\ProgramData\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\Common Files\McNeel\Rhinoceros\6.0\Plug-ins\KeyShot9RhinoPlugin (ecfe8d1f-876a-460f-aa5e-3dd816936811)\1.0.0.0\KeyShot9RhinoPlugin\Rhino 5.0\KeyShot9RhinoPlugin.rhp “KeyShot9RhinoPlugin” 1.0.0.0
C:\Users\20101\AppData\Roaming\McNeel\Rhinoceros\packages\7.0\AMDDenoiser\0.5.0\AMDDenoiser.Windows.rhp “AMDDenoiser.Windows” 0.5.0.0
C:\Users\20101\AppData\Roaming\McNeel\Rhinoceros\packages\7.0\EleFront\4.2.2\ElefrontProperties.rhp “ElefrontProperties” 1.0.0.0
C:\Users\20101\AppData\Roaming\McNeel\Rhinoceros\packages\7.0\RhinoFileVersion\7.0.7703\RhinoFileVersion.rhp “Rhino 3DM File Version” 7.0.7703.19539

Rhino plugins that ship with Rhino
C:\Program Files\Rhino 7\Plug-ins\SolidTools.rhp “SolidTools”
C:\Program Files\Rhino 7\Plug-ins\Commands.rhp “Commands” 7.5.21100.3001
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\RhinoLabsTools.rhp “Rhino Labs Tools”
C:\Program Files\Rhino 7\Plug-ins\IdleProcessor.rhp “IdleProcessor”
C:\Program Files\Rhino 7\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 7.5.21100.3001
C:\Program Files\Rhino 7\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 7.5.21100.3001
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” 7.5.21100.3001
C:\Program Files\Rhino 7\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 7.5.21100.3001
C:\Program Files\Rhino 7\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
C:\Program Files\Rhino 7\Plug-ins\Displacement.rhp “Displacement”
C:\Users\20101\AppData\Roaming\McNeel\Rhinoceros\packages\7.0\PanelingTools\2021.3.2.446\PanelingTools.rhp "PanelingTools"bad scene silloute.3dm (154.6 KB)