I managed to get stuck in block editing mode – basically the same issue as this old thread, except in Mac Rhino 8.29.26063.11002. This happened by undoing / redoing across block edit sessions, but unfortunately I can’t remember the exact sequence.
After closing and reopening the attached file, I find the block I was editing has been exploded, and all other geometry is locked.
In this case I can fix it manually, this is just to point out that the issue is back / didn’t go away…
When I open my file, it looks like BlockEdit is already active, even though I’m not actually editing a block. If I double-click the block that’s supposedly being edited, Rhino displays the message: “BlockEdit already running.”
However, when I click OK or close the Block Edit dialog, the entire model disappears, leaving only the contents of that block visible. I also confirmed that if I save the file in this state, the rest of the model is effectively lost.
At this point, the only workaround I’ve found is to copy the entire model into a new file, which resolves the issue temporarily. However, this is far from ideal, especially for large projects.
Has anyone experienced this before, or is this a known bug in Rhino 8?
