How to stop unloading the material layers, object, render, users and extra layers in Layer Tab please?

Hello Everyone,

I am still new to Rhino and I would appreciate if you could guide me please on how to stop unloading the material layers, object, render, users and extra layers in Layer Tab as you can see in the attachment? They kept appear although I delete them every time I save the file.

Thank you very much!

Hi Nada - do these layers also appear when you start a new Rhino file from a factory-default template file? Can you please run the Rhino SystemInfo command and copy-paste the result here?

Hi Wim and thank so much for your kind help!
The layers don’t appear when I start a new blank file.

And just to mention, I used to have MatrixGold which run by Rhino (I am not sure if this help)

This is the result of the System info:

Rhino 6 SR30 2020-10-14 (Rhino 6, 6.30.20288.16411, Git hash:master @ aa50c15036dbe0dbd38214d6ca94d76dbecda24d)

License type: Commercial, build 2020-10-14
License details: Stand-Alone

Windows 10.0 SR0.0 or greater (Physical RAM: 16Gb)
Machine name: NADA_HP_PC

Non-hybrid graphics.
Primary display and OpenGL: NVIDIA GeForce RTX 2060 (NVidia) Memory: 6GB, Driver date: 7-5-2020 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 451.67

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: 7-5-2020
Driver Version:
Maximum Texture size: 32768 x 32768
Z-Buffer depth: 24 bits
Maximum Viewport size: 32768 x 32768
Total Video Memory: 6 GB

Rhino plugins
C:\Program Files\Rhino 6\Plug-ins\Commands.rhp “Commands” 6.30.20288.16411
C:\Program Files\Rhino 6\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 6\Plug-ins\RhinoBonusTools.rhp “Rhino Bonus Tools”
C:\Program Files\Rhino 6\Plug-ins\RhinoRender.rhp “Rhino Render”
C:\Program Files\Rhino 6\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 6.30.20288.16411
C:\Program Files\Rhino 6\Plug-ins\rdk_ui.rhp “Renderer Development Kit UI”
C:\Program Files\Rhino 6\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 6\Plug-ins\RhinoCycles.rhp “RhinoCycles” 6.30.20288.16411
C:\Program Files\Rhino 6\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 6.30.20288.16411
C:\Program Files\Rhino 6\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
C:\Program Files\Rhino 6\Plug-ins\Displacement.rhp “Displacement”
C:\Program Files\Rhino 6\Plug-ins\Calc.rhp “Calc”

Thank you Wim!

Hi Nada -

In that case, it’s MatrixGold that is creating these layers.
I have never used MatrixGold but perhaps there are settings that let you configure these things?
I’m afraid you’ll have to contact support at Stuller if that doesn’t help.

Hi Wim and thank you so much for your great help and assistance!
MatrixGold is already expired as it was a student version, so I will remove it from the system and see if this will solve the problem.