I’d like to add a fairly serious bug to the ‘some bugs’ list 
When applying the following steps Block-Objects go Pac-Man on all objects.
Selecting a Block from a file containing loose geometry on several layers and blocks
> Isolate (for whatever reason that command is super slow, but that’s not the bug)
> BlockEdit
> Show (either all objects or ShowSelected) //this now shows the objects within the blockeditor
> End BlockEdit
This results in the visible objects beeing added to this block, no matter the object type. This issue is amplyfied by the problem, that undoing only deletes the object out of the block but not bringing it back outside of the block.
SystemInfo
Rhino 9 SR0 2026-7-7 (Rhino 9 BETA, 9.0.26188.13293, Git hash:master @ ac87238b2f9b57fd23752c796764855762dd1390)
License type: Commercial, build 2026-07-07
License details: Cloud Zoo
Expires on: 2026-08-21
Windows 11 (10.0.26200 SR0.0) or greater (Physical RAM: 31GB)
.NET 10.0.2
Computer platform: LAPTOP - Plugged in [81% battery remaining]
Non-hybrid graphics configuration using DirectX
Primary display: AMD Radeon™ 780M (AMD) Memory: 1GB, Driver date: 6-28-2026 (M-D-Y). DirectX(11)
Integrated accelerated graphics device with 5 adapter port(s)
- Windows Main Display is laptop’s integrated screen or built-in port
Secondary graphics devices.
None found.
DirectX Settings
Safe mode: Off
OpenBLAS: OpenBLAS 0.3.30 DYNAMIC_ARCH NO_AFFINITY Cooperlake MAX_THREADS=64.
Rhino plugins that do not ship with Rhino
C:\Users\tradi\AppData\Roaming\McNeel\Rhinoceros\packages\9.0\Karamba3D\3.1.60519\net8.0-windows\Karamba3D_LicensePlugin_Rhino8.rhp “Karamba3DLicense”
Rhino plugins that ship with Rhino
C:\Program Files\Rhino 9 WIP\Plug-ins\Commands.rhp “Commands” 9.0.26188.13293
C:\Program Files\Rhino 9 WIP\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 9 WIP\Plug-ins\3dxRhino.9.rhp “3DxRhino.9”
C:\Program Files\Rhino 9 WIP\Plug-ins\UpdatesAndStatistics\UpdatesAndStatistics.rhp “UpdatesAndStatistics” 9.0.26188.13293
C:\Program Files\Rhino 9 WIP\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 9.0.26188.13293
C:\Program Files\Rhino 9 WIP\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 9.0.26188.13293
C:\Program Files\Rhino 9 WIP\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 9 WIP\Plug-ins\MeshCommands.rhp “MeshCommands” 9.0.26188.13293
C:\Program Files\Rhino 9 WIP\Plug-ins\RhinoCycles.rhp “RhinoCycles” 9.0.26188.13293
C:\Program Files\Rhino 9 WIP\Plug-ins\Displacement.rhp “Displacement”
C:\Program Files\Rhino 9 WIP\Plug-ins\SectionTools.rhp “SectionTools”
