File will not open in rhino 7


I have just upgraded my Rhino 6 to Rhino 7 and I am finding that it is incredibly slow at opening files sometimes it point blank won’t open them.

I just get the swirl for up to 10 minutes then get presented with this screen which is not clickable and rhino is not quit able only force quit works to close it.

If make a new file in rhino 7 save and close then open it again then it works fine which is why I am assuming its an issue opening rhino 6 files in rhino 7.


if it does stop loading then this screen comes up

Hi Callum -
Could you post a 3dm file that behaves like this?
Also, run the Rhino SystemInfo command and copy-paste the result here.


Here is system info.

Rhino 7 SR0 2020-11-9 (Rhino 7, 7.0.20314.03002, Git hash:master @ 9d1a3d02b292e00d3480c301d33f414d91acdcbd)

License type: Evaluation, build 2020-11-09

License details: Stand-Alone

Expires on: 2021-02-28

Apple Intel 64-bit macOS Version 10.16 (Build 20B29) (Physical RAM: 16Gb)

Mac Model Identifier: MacBookPro14,3

Language: en-GB (MacOS default)

AMD Radeon Pro 555 OpenGL Engine (OpenGL ver:4.1 ATI-4.0.47)

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: 4.1

Shading Language: 4.10

Maximum Texture size: 16384 x 16384

Z-Buffer depth: n/a

Maximum Viewport size: 16384 x 16384

Total Video Memory: 2 GB

Graphics: Radeon Pro 555

Displays: Color LCD (258dpi 2x)

Graphics processors

Intel HD Graphics 630 (1536 MB)

Radeon Pro 555 (2 GB)

Color LCD (1680 x 1050)

USB devices

Seagate: Expansion

Apple Inc.: Apple T1 Controller

Bluetooth devices


Third party kernel extensions


Third party plugins























Rhino plugins that do not ship with Rhino

Rhino plugins that ship with Rhino

/Applications/Rhino “Snapshots” 7.0.20314.1002

/Applications/Rhino “PanelingTools” 7.0.20314.1002

/Applications/Rhino “Renderer Development Kit” 7.0.20314.1002

/Applications/Rhino “Displacement” 7.0.20314.1002

/Applications/Rhino “Legacy Rhino Render” 7.0.20314.1002

/Applications/Rhino “Commands” 7.0.20314.3002

/Applications/Rhino “Import_OBJ” 7.0.20314.3002

/Applications/Rhino “export_xaml” 7.0.20314.3002

/Applications/Rhino “QuadRemesh” 7.0.20314.3002

/Applications/Rhino “export_OBJ” 7.0.20314.3002

/Applications/Rhino “RDK_EtoUI” 7.0.20314.3002

/Applications/Rhino “Export SVG” 7.0.20314.3002

/Applications/Rhino “MeshCommands” 7.0.20314.3002

/Applications/Rhino “Export_DAE” 7.0.20314.3002

/Applications/Rhino “PDF Export” 7.0.20314.3002

/Applications/Rhino “IGES Export Plug-in” 7.0.20314.3002

/Applications/Rhino “Import_SVG” 7.0.20314.3002

/Applications/Rhino “BlockEdit” 7.0.20314.3002

/Applications/Rhino “Export_AMF” 7.0.20314.3002

/Applications/Rhino “Rhino Render” 7.0.20314.3002

/Applications/Rhino “Import_DST” 7.0.20314.3002

/Applications/Rhino “PLY - Polygon File Format Export” 7.0.20314.3002

/Applications/Rhino “Import_AMF” 7.0.20314.3002

/Applications/Rhino “RhinoCycles” 7.0.20314.3002

/Applications/Rhino “IronPython” 7.0.20314.3002

/Applications/Rhino “Grasshopper” 7.0.20314.3002

Says it cannot upload file when it gets to about 25%? Any other way to get it to you?


Rhino 7 for Windows opens the file in several seconds on my system. There is a pop-up warning about a missing font.


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@k1716868 - Hi Callum - It looks like Rhino for Mac for some reason does not like the maximized viewport. I saved it with 4 views and will upload it for you - you’ll get an email with a link. Thanks for the report.
Actually, you can try, while Rhino is trying to open the file, typing (even though there is nowhere to type, really) testCloseLoadingWindow.

Hm - maybe something else happening as well - I’ll just upload the file - it looks like there may be another dialog stuck, maybe the font one.

RH-61757 File IO: V7 Mac cannot open the file



@k1716868 In the meantime, while this open bug gets looked into, try starting a new blank file and then use Import to bring in the 3dm that is having the issue. This works here.

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Looks like it was this dialogue that could not be displayed.

Thank you. I have the same issue and typing “testcloseloadingwindow” works for mine!

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