UV Editor makes material invisible in viewport

@Jussi_Aaltonen
Look what happens when an object gets selected in the UV Editor:

SysInfo

Rhino 9 SR0 2026-2-24 (Rhino WIP, 9.0.26055.12305, Git hash:master @ 9ee31a3c2831f65aa872a3f62dc11054381a7f68)
License type: Commercial, build 2026-02-24
License details: Cloud Zoo
Expires on: 2026-04-10

Windows 11 (10.0.26200 SR0.0) or greater (Physical RAM: 32GB)
.NET 9.0.13

Computer platform: DESKTOP

Standard graphics configuration using DirectX
Primary display: NVIDIA GeForce RTX 2070 (NVidia) Memory: 8GB, Driver date: 12-2-2025 (M-D-Y). DirectX(11)
> Accelerated graphics device with 4 adapter port(s)
- Windows Main Display attached to adapter port 0
- Secondary monitor attached to adapter port 1

Secondary graphics devices.
None found.

DirectX Settings
Safe mode: Off

OpenBLAS: OpenBLAS 0.3.30 DYNAMIC_ARCH NO_AFFINITY Zen MAX_THREADS=64.

Rhino plugins that do not ship with Rhino

Rhino plugins that ship with Rhino
C:\Program Files\Rhino 9 WIP\Plug-ins\Commands.rhp “Commands” 9.0.26055.12305
C:\Program Files\Rhino 9 WIP\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 9 WIP\Plug-ins\UpdatesAndStatistics\UpdatesAndStatistics.rhp “UpdatesAndStatistics” 9.0.26055.12305
C:\Program Files\Rhino 9 WIP\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 9.0.26055.12305
C:\Program Files\Rhino 9 WIP\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 9.0.26055.12305
C:\Program Files\Rhino 9 WIP\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 9 WIP\Plug-ins\MeshCommands.rhp “MeshCommands” 9.0.26055.12305
C:\Program Files\Rhino 9 WIP\Plug-ins\RhinoCycles.rhp “RhinoCycles” 9.0.26055.12305
C:\Program Files\Rhino 9 WIP\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
C:\Program Files\Rhino 9 WIP\Plug-ins\Displacement.rhp “Displacement”
C:\Program Files\Rhino 9 WIP\Plug-ins\SectionTools.rhp “SectionTools”

Thanks for reporting!
RH-93947 UV Editor disturbs object drawing