Create a new Canvas and two new groups with any names. Place the identical groups in the same location (with grid snapping).
Drag the resulting group around a few times.
Did you follow the troubleshooting guide? [Y/N]
I reproduced this in a restricted mode vault.
Obviously there’s no good reason to place two groups like this, but it happened to me by accident. I expected that if I dragged the edge then I could then select the larger group and separate then again. This does work as long as you don’t drag both of the groups first.
After dragging the resulting group pair a couple of times, both disappear, along with all other items in the canvas. In some cases the groups will remain but no interaction is possible.
If you close this canvas and open it again, it will seem to be restored to a previous arrangement, though in some cases the canvas will still be glitchy.
Obsidian version: v1.5.3
Installer version: v1.4.13
Operating system: Windows 10 Home 10.0.22621
Login status: logged in
Catalyst license: none
Insider build toggle: off
Live preview: on
Base theme: dark
Community theme: none
Snippets enabled: 0
Restricted mode: on