This is not the first time I see this happening and this time I thought on sharing it with the community. It still does not make sense to me why this happens although the solution goes through some reconstraining of the Leaf door family.
Basically, the Door swing representation changes if you change the Leaf material to something different than <ByCategory>. Please see video below and family attached.
Changing Material changes Door Swing representation | Revit | Autodesk Knowledge Network
Nothing looks like it changed in your screencast. What am I missing?
...AH! I see! Post the file.
It is the shared kickplate that is attached to the swing that isn't constraint properly. When you change material, the shared kickplate moved which move the swing. So I have to detached the kickplate and properly host it to reference plane. It works properly when you change the material. See attached
Thank you for looking at it and for attaching the fixed family, @syman2000
I was also managed to fix it by reconstraining the nested Door Leaf panel instances.
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The question remains, though. We know how to fix it but WHY does changing a Material Parameter messes up with Geometry?
Thank you for watching it, @barthbradley .
Family is attached to the original post.
Yep, I saw it. That's where the screenshot I posted is from. Regarding the issue: it's bizarre to say the least. I've never seen this happen. It isn't logical. You seemed to have found a bug.
Maybe this is one of those unpredictable behaviors that Revit is warning you might occur.
Hard to say. Normally material shouldn't trigger the error. It is this error message I get when I open the panel family. Perhaps something in that panel family trigger the error. Also I host the shared kickplate on the reference plane instead of the panel itself. Shared nested family has a tendency to cause some weird abnormally.
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