Yes, I confused the object name with the layer name, partly because I have not named any objects.
There was a temp layer at one stage that had that name though…
The file was not imported - it’s all rhino.
All the curves in that drawing are created from a solid via make2D. The holes in the solid were all created from arrayed circles made via the circle command, and then via the make hole command.
Anyway, having somehow created these rogue circle curves, I cant think yet how I might check for their existence?
Since they are all the same colour, all on the same layer, and visibly identical (unless zoomed right in) I cant think how I might discover them…
I think that an improved select duplicate has to be the answer.
I note also that the current SelDup will sometimes not even select as duplicates objects that are made via copyinplace…
It’s well overdue for an overhaul, but that’s a different topic.