Dynamo Creating unwanted temporary generic models

I’m trying to creating revision clouds around selected objects and the only issue I am currently running into it that whenever I trying to pull the perimeter curves the Surface.PerimeterCurves block generates a temporary generic model along the same lines(that I don’t want visible), until I re run the program or close and re-open the project. Secondarily every time I run the script it clears the previous revision cloud as well.

When retooling the workflow or logic, I typically freeze the node that is creating the “thing” or in your case, the rev clouds. Only when you get the logic how you want it would you unfreeze the node.

I just realized, when you mention temporary generic model, is it the temporary Revit preview that is showing?

The deletion sounds like an element binding issue. How are you envisioning running this workflow? Will it be just you, or will you give it to your coworkers to run as well? I believe the Dynamo player can handle element binding and ensure that when you rerun the workflow, it won’t delete the previous effort. Here is a forum post about element binding, and I know there are a lot of other posts regarding this issue.

It was the Revit Background Preview, I assume it was creating something somewhere because it could be hidden with view filters and also appeared when plotting.

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Gotcha, glad I was able to help on that topic.

Did what I wrote help with your issue where rev cloud delete when you try to create a new one?

Enough that I could see what I needed to do and that it was out of my league, but another topic mentioned running the program through dynamo player and that solved my secondary issue.

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