Columns issue appears with no matterial

My Friends,
Hope you are doing well,
i am facing a wired issue with some columns created with Dynamo that they are appears with no material when i am pretty sure that the column was given a material as shown in the attached photos.
the family of the column created by a script .
I hope if you could help me understand why the columns appears like this and how can i fix it?
(the issue happen with Revit 2020 and the same for version 2021 also)


Is there anyone can help with any suggestion please?

Anyone who wants to help would need the dyn and source data to reproduce the issue.