Autodesk Revit 2019.2 With Add-ons

Quite a handy tool, but I get this error message on revit 2017.2.:"Command is failed for unexpected reason. The curves do not form a closed contiguous loop.Parameter name: curves"Does anybody else experience that? How can I fix this? It works fine with Revit 2016

Autodesk Revit 2019.2 with Add-ons

Last week, the Revit product team announced the release of Revit 2019.2. This update included big news for BIM 360 users like you who upload your Revit models to the BIM 360 platform, whether for individual use or when collaborating with multidiscipline teams.

I'm sorry I missed this before. Can you send a file to revit-apps with a more detailed description of the issue? I don't know what renaming may have happened in 2019, and we don't expect to do that often.