Hi Leonard, thanks for attaching that file "Clerestory edge problem.3dm".
When I load that file I can definitely see that you have some edges not displayed there.
But they do seem to exist and are just hidden. If I click the Edit/Hide button located in the UI here:
immediately after loading your file, the edges are unhidden and then can be seen and picked.
What happens if you follow these exact steps:
1 - load your just attached file Clerestory edge problem.3dm
2 - push that hide button
Do you then see the edges?
- Michael
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