Interface and viewports Crashes - Rhino 6

Hello,

I’m struggling with Rhino 6 interface and viewports outages. I haven’t figured out the reason for this. It seems random to me. I experimented with different versions of graphics card drivers and it happens on two different computers.
As you work, the entire Rhino interface suddenly drops out of nowhere and displays a rough preview of the viewports which are oddly overlapping. You can use mouse to control the camera view. It is possible to rotate, zoom, but there are no tool palettes, command line, main menu. Fortunately, the work can be saved via Control + S. Then you need to close Rhino and start it again.

I attach a screen shot footage that I recorded.
Do you have any idea what this could cause? It’s quite annoying.
Thanks for help.

SYSTEM INFO:
Rhino 6 SR26 2020-5-26 (Rhino 6, 6.26.20147.06511, Git hash:master @ 7788f6214ee9335d5793cc6177985a1c745e663b)
License type: Commercial, build 2020-05-26
License details: Cloud Zoo. In use by: Petr Benes ()

Windows 10.0 SR0.0 or greater (Physical RAM: 32Gb)
Machine name: RTX-2070S

Non-hybrid graphics.
Primary display and OpenGL: NVIDIA GeForce RTX 2070 SUPER (NVidia) Memory: 8GB, Driver date: 5-15-2020 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 446.14

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: 5-15-2020
Driver Version: 26.21.14.4614
Maximum Texture size: 32768 x 32768
Z-Buffer depth: 24 bits
Maximum Viewport size: 32768 x 32768
Total Video Memory: 8 GB

Rhino plugins
C:\Program Files\Rhino 6\Plug-ins\Commands.rhp “Commands” 6.26.20147.6511
C:\Users\Petr\AppData\Roaming\McNeel\Rhinoceros\6.0\Plug-ins\Thea For Rhino (0ab51401-0ca2-45e3-94e0-46d77b129353)\2018.3.18.0\Thea_V2\TheaForRhino.rhp “Thea For Rhino”
C:\Program Files\Rhino 6\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 6\Plug-ins\RPC.rhp “RPC”
C:\Program Files\Rhino 6\Plug-ins\RhinoRender.rhp “Rhino Render”
C:\Program Files\Rhino 6\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 6.26.20147.6511
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” 6.26.20147.6511
C:\Program Files\Rhino 6\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 6.26.20147.6511
C:\Program Files\Rhino 6\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
C:\Program Files\Rhino 6\Plug-ins\Displacement.rhp “Displacement”

Hi Petr - does it also do this when you launch Rhino in Safe Mode?
-wim