Poly lines disappeared and a new pink box has appeared in viewports

Hello! I’ve seen this issue posted yet im having a hard time finding the solution. All of a sudden when I draw new lines (in a new file and old) they’ve disappeared… They will dash when selected but once unselected they disappear, a strange bounding box will also highlight a larger area of that selection. Does anyone have an idea as to why?

Hello -

Please run the SystemInfo command in Rhino and copy/paste the results here.
Is the display mode set to show curves?
And if you Zoom Extents, does the view zoom way way out?


Rhino 6 SR34 2021-2-3 (Public Build, 6.34.21034.07002, Git hash:master @ 2fec8130f097ca52a8bc9f334c3ed4a5921c5e30)
License type: Educational Lab License, build 2021-02-03
License details: LAN Zoo Network Node

Apple Intel 64-bit macOS Version 10.16 (Build 20D91) (Physical RAM: 16Gb)
Mac Model Identifier: MacBookPro16,1
Machine name: Rayce’s MacBook Pro
Language: en-US (MacOS default)

AMD Radeon Pro 5300M OpenGL Engine (OpenGL ver:4.1 ATI-4.2.15)

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: 4.1
Shading Language: 4.10
Maximum Texture size: 16384 x 16384
Z-Buffer depth: n/a
Maximum Viewport size: 16384 x 16384
Total Video Memory: 4 GB
Graphics: AMD Radeon Pro 5300M
Displays: Color LCD (264dpi 2x), HP 23er (96dpi 1x)

Graphics processors
Intel UHD Graphics 630 (1536 MB)
AMD Radeon Pro 5300M (4 GB)
Color LCD (1792 x 1120 @ 59.00Hz)
HP 23er (1920 x 1080 @ 60.00Hz)

USB devices
Apple Inc.: USB3.0 Hub
Apple Inc.: USB-C Digital AV Multiport Adapter
Logitech: USB Optical Mouse
Apple: composite_device
Apple Inc.: Touch Bar Backlight
Apple Inc.: Touch Bar Display
Apple Inc.: Apple Internal Keyboard / Trackpad
Apple: Headset
Apple Inc.: Ambient Light Sensor
Apple Inc.: FaceTime HD Camera (Built-in)
Apple Inc.: Apple T2 Controller

Bluetooth devices
Apple: Audio Sink, AVRCP Controller, AAP Server, Handsfree, AVRCP Target

Third party kernel extensions

Third party plugins

Rhino plugins
/Applications/Rhinoceros.app/Contents/PlugIns/PanelingTools.rhp “PanelingTools” 6.34.21034.1002
/Applications/Rhinoceros.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/GrasshopperPlugin.rhp “Grasshopper” 6.34.21034.7002
/Applications/Rhinoceros.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/RhinoDLR_Python.rhp “IronPython” 6.34.21034.7002
/Applications/Rhinoceros.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/Commands.rhp “Commands” 6.34.21034.7002
/Applications/Rhinoceros.app/Contents/PlugIns/NamedSnapshots.rhp “Snapshots” 6.34.21034.1002
/Applications/Rhinoceros.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/RDK_EtoUI.rhp “RDK_EtoUI” 6.34.21034.7002
/Applications/Rhinoceros.app/Contents/PlugIns/Displacement.rhp “Displacement” 6.34.21034.1002
/Applications/Rhinoceros.app/Contents/Frameworks/RhMaterialEditor.framework “Renderer Development Kit” 6.34.21034.1002
/Applications/Rhinoceros.app/Contents/PlugIns/RhinoRender.rhp “Rhino Render” 6.34.21034.1002
/Applications/Rhinoceros.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/RhinoCycles.rhp “RhinoCycles” 6.34.21034.7002

zoom extents does not…
display mode is set to show curves

Hm… I do not have a good idea at the moment - quit and reopen Rhino… or even reboot…



Can you post the problematic file? Maybe I can try to replicate the issue.

Kaushik LS