Possible bug: after subdividing a model extrude face not visible in the Gumball

Hello, after subdividing this model extrude not visible in the Gumball

PossibleProblem.3dm (155.8 KB)

Yes, same here, but only if SubD-Reflect applied.


And same issue with Subd _Radiate.
Best regards

Hi Joao - as far as I can see this works here on our latest in-house builds. Can you run SystemInfo in Rhino and cpoy/paste the results here?


Hi Pascal, here it goes

Rhino 7 SR7 2021-5-18 (Rhino 7, 7.7.21138.11001, Git hash:master @ 175cf0b9405e059f3075a5720c0c37a9d52b6a5c)
License type: Educational, build 2021-05-18
License details: Stand-Alone

Windows 10.0.19041 SR0.0 or greater (Physical RAM: 7.9Gb)

Computer platform: LAPTOP - Plugged in [99% battery remaining]

Hybrid graphics configuration.
Primary display: Intel(R) HD Graphics Family (Intel) Memory: 1GB, Driver date: 3-8-2017 (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: NVIDIA GeForce 840M (NVidia) Memory: 2GB, Driver date: 12-18-2017 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 388.73
> 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
Graphics level being used: OpenGL 4.6 (primary GPU’s maximum)

Anti-alias mode: 4x
Mip Map Filtering: Linear
Anisotropic Filtering Mode: High

Vendor Name: NVIDIA Corporation
Render version: 4.6
Shading Language: 4.60 NVIDIA
Driver Date: 12-18-2017
Driver Version:
Maximum Texture size: 16384 x 16384
Z-Buffer depth: 24 bits
Maximum Viewport size: 16384 x 16384
Total Video Memory: 2 GB

Hi Joao - I’d start by updating the drivers of both GPUs to the latest available from the Intel and NVidia websites.


Thanks Pascal. By the way, if I break the Reflect, the problem disappears

Hi Joao- did new drivers fix it more thoroughly?


I have not yet updated. I have some high responsability work to be done this week and will wait for next week to try the updates

Last driver installed, bug still present. *RH 7, 7.7.21131.13001

If after subdividing I use the extrude icon from the SubD toolbar it works fine, despite the extrude option not being visible in the Gumball.

As said before, if Reflect is broken then the extrude option after subdividing appears in the Gumball and works fine